70938657 has 12 divisors (see below), whose sum is σ = 105236820. Its totient is φ = 46014048.

The previous prime is 70938641. The next prime is 70938661. The reversal of 70938657 is 75683907.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 47114496 + 23824161 = 6864^2 + 4881^2 .

It is not a de Polignac number, because 70938657 - 2⁴ = 70938641 is a prime.

It is a super-3 number, since 3×70938657³ (a number of 25 digits) contains 333 as substring.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (70938667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106182 + ... + 106847.

It is an arithmetic number, because the mean of its divisors is an integer number (8769735).

Almost surely, 2^70938657 is an apocalyptic number.

It is an amenable number.

70938657 is a deficient number, since it is larger than the sum of its proper divisors (34298163).

70938657 is a wasteful number, since it uses less digits than its factorization.

70938657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213072 (or 213069 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 70938657 is about 8422.5089492383. The cubic root of 70938657 is about 413.9624869742.

The spelling of 70938657 in words is "seventy million, nine hundred thirty-eight thousand, six hundred fifty-seven".