61908894 has 16 divisors (see below), whose sum is σ = 137575440. Its totient is φ = 20636280.

The previous prime is 61908857. The next prime is 61908919. The reversal of 61908894 is 49880916.

It is a super-2 number, since 2×61908894² = 7665422312606472, which contains 22 as substring.

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, 573177 + ... + 573284.

It is an arithmetic number, because the mean of its divisors is an integer number (8598465).

Almost surely, 2^61908894 is an apocalyptic number.

61908894 is an abundant number, since it is smaller than the sum of its proper divisors (75666546).

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

61908894 is a wasteful number, since it uses less digits than its factorization.

61908894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146472 (or 1146466 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 61908894 is about 7868.2205103823. The cubic root of 61908894 is about 395.5952015920.

The spelling of 61908894 in words is "sixty-one million, nine hundred eight thousand, eight hundred ninety-four".