60638661 has 12 divisors (see below), whose sum is σ = 87748492. Its totient is φ = 40352256.

The previous prime is 60638653. The next prime is 60638663. The reversal of 60638661 is 16683606.

It can be written as a sum of positive squares in 2 ways, for example, as 57289761 + 3348900 = 7569^2 + 1830^2 .

It is not a de Polignac number, because 60638661 - 2³ = 60638653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60638663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 646 + ... + 11031.

Almost surely, 2^60638661 is an apocalyptic number.

It is an amenable number.

60638661 is a deficient number, since it is larger than the sum of its proper divisors (27109831).

60638661 is a wasteful number, since it uses less digits than its factorization.

60638661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12260 (or 12257 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 60638661 is about 7787.0829583356. The cubic root of 60638661 is about 392.8709052904.

The spelling of 60638661 in words is "sixty million, six hundred thirty-eight thousand, six hundred sixty-one".