70321605 has 32 divisors (see below), whose sum is σ = 120403584. Its totient is φ = 34922496.

The previous prime is 70321597. The next prime is 70321621. The reversal of 70321605 is 50612307.

It is not a de Polignac number, because 70321605 - 2³ = 70321597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23314 + ... + 26156.

It is an arithmetic number, because the mean of its divisors is an integer number (3762612).

Almost surely, 2^70321605 is an apocalyptic number.

It is an amenable number.

70321605 is a deficient number, since it is larger than the sum of its proper divisors (50081979).

70321605 is a wasteful number, since it uses less digits than its factorization.

70321605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2965.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 70321605 is about 8385.7978153542. The cubic root of 70321605 is about 412.7587210748.

The spelling of 70321605 in words is "seventy million, three hundred twenty-one thousand, six hundred five".