61261908 has 24 divisors (see below), whose sum is σ = 143895360. Its totient is φ = 20284800.

The previous prime is 61261901. The next prime is 61261943. The reversal of 61261908 is 80916216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61261901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15093 + ... + 18716.

It is an arithmetic number, because the mean of its divisors is an integer number (5995640).

Almost surely, 2^61261908 is an apocalyptic number.

It is an amenable number.

61261908 is an abundant number, since it is smaller than the sum of its proper divisors (82633452).

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

61261908 is a wasteful number, since it uses less digits than its factorization.

61261908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33967 (or 33965 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 61261908 is about 7826.9986584897. The cubic root of 61261908 is about 394.2123019471.

The spelling of 61261908 in words is "sixty-one million, two hundred sixty-one thousand, nine hundred eight".