70621957 has 8 divisors (see below), whose sum is σ = 82034432. Its totient is φ = 59540400.

The previous prime is 70621951. The next prime is 70621963. The reversal of 70621957 is 75912607.

It is an interprime number because it is at equal distance from previous prime (70621951) and next prime (70621963).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70621957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70621951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82269 + ... + 83122.

It is an arithmetic number, because the mean of its divisors is an integer number (10254304).

Almost surely, 2^70621957 is an apocalyptic number.

It is an amenable number.

70621957 is a deficient number, since it is larger than the sum of its proper divisors (11412475).

70621957 is a wasteful number, since it uses less digits than its factorization.

70621957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165459.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 70621957 is about 8403.6871074547. The cubic root of 70621957 is about 413.3455337334.

The spelling of 70621957 in words is "seventy million, six hundred twenty-one thousand, nine hundred fifty-seven".