61420916 has 12 divisors (see below), whose sum is σ = 109773888. Its totient is φ = 30056952.

The previous prime is 61420873. The next prime is 61420921. The reversal of 61420916 is 61902416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163166 + ... + 163541.

It is an arithmetic number, because the mean of its divisors is an integer number (9147824).

Almost surely, 2^61420916 is an apocalyptic number.

It is an amenable number.

61420916 is a deficient number, since it is larger than the sum of its proper divisors (48352972).

61420916 is a wasteful number, since it uses less digits than its factorization.

61420916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326758 (or 326756 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 61420916 is about 7837.1497369898. The cubic root of 61420916 is about 394.5530724614.

The spelling of 61420916 in words is "sixty-one million, four hundred twenty thousand, nine hundred sixteen".