69400481 has 2 divisors, whose sum is σ = 69400482. Its totient is φ = 69400480.

The previous prime is 69400427. The next prime is 69400517. The reversal of 69400481 is 18400496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56325025 + 13075456 = 7505^2 + 3616^2 .

It is a cyclic number.

It is not a de Polignac number, because 69400481 - 2⁶ = 69400417 is a prime.

It is a super-2 number, since 2×69400481² = 9632853526062722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (69400181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34700240 + 34700241.

It is an arithmetic number, because the mean of its divisors is an integer number (34700241).

Almost surely, 2^69400481 is an apocalyptic number.

It is an amenable number.

69400481 is a deficient number, since it is larger than the sum of its proper divisors (1).

69400481 is an equidigital number, since it uses as much as digits as its factorization.

69400481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 69400481 is about 8330.6951090530. The cubic root of 69400481 is about 410.9485888693.

The spelling of 69400481 in words is "sixty-nine million, four hundred thousand, four hundred eighty-one".