61670475 has 72 divisors (see below), whose sum is σ = 122215392. Its totient is φ = 29568000.

The previous prime is 61670461. The next prime is 61670489. The reversal of 61670475 is 57407616.

It is an interprime number because it is at equal distance from previous prime (61670461) and next prime (61670489).

It is not a de Polignac number, because 61670475 - 2⁴ = 61670459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 87625 + ... + 88325.

It is an arithmetic number, because the mean of its divisors is an integer number (1697436).

Almost surely, 2^61670475 is an apocalyptic number.

61670475 is a deficient number, since it is larger than the sum of its proper divisors (60544917).

61670475 is a wasteful number, since it uses less digits than its factorization.

61670475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 61670475 is about 7853.0551379702. The cubic root of 61670475 is about 395.0867191965.

The spelling of 61670475 in words is "sixty-one million, six hundred seventy thousand, four hundred seventy-five".