61321696 has 48 divisors (see below), whose sum is σ = 123863040. Its totient is φ = 29877120.

The previous prime is 61321661. The next prime is 61321717. The reversal of 61321696 is 69612316.

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, 320961 + ... + 321151.

It is an arithmetic number, because the mean of its divisors is an integer number (2580480).

Almost surely, 2^61321696 is an apocalyptic number.

It is an amenable number.

61321696 is an abundant number, since it is smaller than the sum of its proper divisors (62541344).

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

61321696 is a wasteful number, since it uses less digits than its factorization.

61321696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 399 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 61321696 is about 7830.8170710342. The cubic root of 61321696 is about 394.3405028834.

The spelling of 61321696 in words is "sixty-one million, three hundred twenty-one thousand, six hundred ninety-six".