61896464 has 40 divisors (see below), whose sum is σ = 137574528. Its totient is φ = 26426880.

The previous prime is 61896431. The next prime is 61896529. The reversal of 61896464 is 46469816.

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, 33944 + ... + 35720.

Almost surely, 2^61896464 is an apocalyptic number.

It is an amenable number.

61896464 is an abundant number, since it is smaller than the sum of its proper divisors (75678064).

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

61896464 is a wasteful number, since it uses less digits than its factorization.

61896464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103 (or 2097 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 61896464 is about 7867.4305843776. The cubic root of 61896464 is about 395.5687240960.

The spelling of 61896464 in words is "sixty-one million, eight hundred ninety-six thousand, four hundred sixty-four".