61397464 has 16 divisors (see below), whose sum is σ = 117798120. Its totient is φ = 29984640.

The previous prime is 61397461. The next prime is 61397477. The reversal of 61397464 is 46479316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61397461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88897 + ... + 89584.

Almost surely, 2^61397464 is an apocalyptic number.

It is an amenable number.

61397464 is a deficient number, since it is larger than the sum of its proper divisors (56400656).

61397464 is a wasteful number, since it uses less digits than its factorization.

61397464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178530 (or 178526 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 61397464 is about 7835.6533869231. The cubic root of 61397464 is about 394.5028494148.

The spelling of 61397464 in words is "sixty-one million, three hundred ninety-seven thousand, four hundred sixty-four".