61384664 has 16 divisors (see below), whose sum is σ = 125559720. Its totient is φ = 27902080.

The previous prime is 61384657. The next prime is 61384699. The reversal of 61384664 is 46648316.

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, 348689 + ... + 348864.

Almost surely, 2^61384664 is an apocalyptic number.

It is an amenable number.

61384664 is an abundant number, since it is smaller than the sum of its proper divisors (64175056).

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

61384664 is a wasteful number, since it uses less digits than its factorization.

61384664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697570 (or 697566 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 61384664 is about 7834.8365649833. The cubic root of 61384664 is about 394.4754324983.

The spelling of 61384664 in words is "sixty-one million, three hundred eighty-four thousand, six hundred sixty-four".