70969257 has 16 divisors (see below), whose sum is σ = 106623360. Its totient is φ = 46645200.

The previous prime is 70969253. The next prime is 70969259. The reversal of 70969257 is 75296907.

It is not a de Polignac number, because 70969257 - 2² = 70969253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70969253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16594 + ... + 20427.

It is an arithmetic number, because the mean of its divisors is an integer number (6663960).

Almost surely, 2^70969257 is an apocalyptic number.

It is an amenable number.

70969257 is a deficient number, since it is larger than the sum of its proper divisors (35654103).

70969257 is a wasteful number, since it uses less digits than its factorization.

70969257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37101 (or 37095 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 70969257 is about 8424.3253142314. The cubic root of 70969257 is about 414.0220005112.

The spelling of 70969257 in words is "seventy million, nine hundred sixty-nine thousand, two hundred fifty-seven".