69898901 has 2 divisors, whose sum is σ = 69898902. Its totient is φ = 69898900.

The previous prime is 69898877. The next prime is 69898919. The reversal of 69898901 is 10989896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49014001 + 20884900 = 7001^2 + 4570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69898901 is a prime.

It is a super-2 number, since 2×69898901² = 9771712722015602, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 69898901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69898981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34949450 + 34949451.

It is an arithmetic number, because the mean of its divisors is an integer number (34949451).

Almost surely, 2^69898901 is an apocalyptic number.

It is an amenable number.

69898901 is a deficient number, since it is larger than the sum of its proper divisors (1).

69898901 is an equidigital number, since it uses as much as digits as its factorization.

69898901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 50.

The square root of 69898901 is about 8360.5562613979. The cubic root of 69898901 is about 411.9300258987.

It can be divided in two parts, 698 and 98901, that added together give a palindrome (99599).

The spelling of 69898901 in words is "sixty-nine million, eight hundred ninety-eight thousand, nine hundred one".