70354621 has 2 divisors, whose sum is σ = 70354622. Its totient is φ = 70354620.

The previous prime is 70354567. The next prime is 70354633. The reversal of 70354621 is 12645307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36132121 + 34222500 = 6011^2 + 5850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70354621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70354621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70354651) 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, 35177310 + 35177311.

It is an arithmetic number, because the mean of its divisors is an integer number (35177311).

Almost surely, 2^70354621 is an apocalyptic number.

It is an amenable number.

70354621 is a deficient number, since it is larger than the sum of its proper divisors (1).

70354621 is an equidigital number, since it uses as much as digits as its factorization.

70354621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 70354621 is about 8387.7661507698. The cubic root of 70354621 is about 412.8233077205.

Adding to 70354621 its reverse (12645307), we get a palindrome (82999928).

The spelling of 70354621 in words is "seventy million, three hundred fifty-four thousand, six hundred twenty-one".