70238957 has 4 divisors (see below), whose sum is σ = 72661020. Its totient is φ = 67816896.

The previous prime is 70238947. The next prime is 70238977. The reversal of 70238957 is 75983207.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32649796 + 37589161 = 5714^2 + 6131^2 .

It is a cyclic number.

It is not a de Polignac number, because 70238957 - 2¹⁰ = 70237933 is a prime.

It is a super-2 number, since 2×70238957² = 9867022160895698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70238947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1210988 + ... + 1211045.

It is an arithmetic number, because the mean of its divisors is an integer number (18165255).

Almost surely, 2^70238957 is an apocalyptic number.

It is an amenable number.

70238957 is a deficient number, since it is larger than the sum of its proper divisors (2422063).

70238957 is a wasteful number, since it uses less digits than its factorization.

70238957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422062.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 70238957 is about 8380.8685110793. The cubic root of 70238957 is about 412.5969544979.

The spelling of 70238957 in words is "seventy million, two hundred thirty-eight thousand, nine hundred fifty-seven".