61900916 has 36 divisors (see below), whose sum is σ = 137473056. Its totient is φ = 24116400.

The previous prime is 61900897. The next prime is 61900919.

It is a happy number.

61900916 is nontrivially palindromic in base 10.

61900916 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

61900916 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61900919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12200 + ... + 16511.

It is an arithmetic number, because the mean of its divisors is an integer number (3818696).

Almost surely, 2^61900916 is an apocalyptic number.

It is an amenable number.

61900916 is an abundant number, since it is smaller than the sum of its proper divisors (75572140).

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

61900916 is a wasteful number, since it uses less digits than its factorization.

61900916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28740 (or 28731 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 61900916 is about 7867.7135179161. The cubic root of 61900916 is about 395.5782078351.

The spelling of 61900916 in words is "sixty-one million, nine hundred thousand, nine hundred sixteen".