61870164 has 24 divisors (see below), whose sum is σ = 145336800. Its totient is φ = 20484384.

The previous prime is 61870153. The next prime is 61870177. The reversal of 61870164 is 46107816.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15514 + ... + 19089.

It is an arithmetic number, because the mean of its divisors is an integer number (6055700).

Almost surely, 2^61870164 is an apocalyptic number.

It is an amenable number.

61870164 is an abundant number, since it is smaller than the sum of its proper divisors (83466636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61870164 is a wasteful number, since it uses less digits than its factorization.

61870164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34759 (or 34757 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 61870164 is about 7865.7589589308. The cubic root of 61870164 is about 395.5126900320.

The spelling of 61870164 in words is "sixty-one million, eight hundred seventy thousand, one hundred sixty-four".