61386672 has 40 divisors (see below), whose sum is σ = 159275520. Its totient is φ = 20372800.

The previous prime is 61386641. The next prime is 61386691. The reversal of 61386672 is 27668316.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 61386672.

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, 8797 + ... + 14147.

It is an arithmetic number, because the mean of its divisors is an integer number (3981888).

Almost surely, 2^61386672 is an apocalyptic number.

It is an amenable number.

61386672 is an abundant number, since it is smaller than the sum of its proper divisors (97888848).

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

61386672 is a wasteful number, since it uses less digits than its factorization.

61386672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601 (or 5595 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 61386672 is about 7834.9647095568. The cubic root of 61386672 is about 394.4797337791.

The spelling of 61386672 in words is "sixty-one million, three hundred eighty-six thousand, six hundred seventy-two".