47961660 has 24 divisors (see below), whose sum is σ = 134292816. Its totient is φ = 12789760.

The previous prime is 47961659. The next prime is 47961671. The reversal of 47961660 is 6616974.

It is a congruent number.

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, 399621 + ... + 399740.

It is an arithmetic number, because the mean of its divisors is an integer number (5595534).

Almost surely, 2^47961660 is an apocalyptic number.

It is an amenable number.

47961660 is an abundant number, since it is smaller than the sum of its proper divisors (86331156).

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

47961660 is a wasteful number, since it uses less digits than its factorization.

47961660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799373 (or 799371 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 47961660 is about 6925.4357263641. The cubic root of 47961660 is about 363.3273311206.

The spelling of 47961660 in words is "forty-seven million, nine hundred sixty-one thousand, six hundred sixty".