70397477 has 8 divisors (see below), whose sum is σ = 72536280. Its totient is φ = 68290560.

The previous prime is 70397461. The next prime is 70397479. The reversal of 70397477 is 77479307.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2070721 + 68326756 = 1439^2 + 8266^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 70397477 - 2⁴ = 70397461 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 (70397479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3452 + ... + 12357.

It is an arithmetic number, because the mean of its divisors is an integer number (9067035).

Almost surely, 2^70397477 is an apocalyptic number.

It is an amenable number.

70397477 is a deficient number, since it is larger than the sum of its proper divisors (2138803).

70397477 is a wasteful number, since it uses less digits than its factorization.

70397477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15943.

The product of its (nonzero) digits is 259308, while the sum is 44.

The square root of 70397477 is about 8390.3204348821. The cubic root of 70397477 is about 412.9071134669.

The spelling of 70397477 in words is "seventy million, three hundred ninety-seven thousand, four hundred seventy-seven".