61690926 has 32 divisors (see below), whose sum is σ = 142518528. Its totient is φ = 17594240.

The previous prime is 61690879. The next prime is 61690927. The reversal of 61690926 is 62909616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61690927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26370 + ... + 28613.

It is an arithmetic number, because the mean of its divisors is an integer number (4453704).

Almost surely, 2^61690926 is an apocalyptic number.

61690926 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

61690926 is an abundant number, since it is smaller than the sum of its proper divisors (80827602).

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

61690926 is a wasteful number, since it uses less digits than its factorization.

61690926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55016.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 61690926 is about 7854.3571347374. The cubic root of 61690926 is about 395.1303869079.

The spelling of 61690926 in words is "sixty-one million, six hundred ninety thousand, nine hundred twenty-six".