47763666 has 12 divisors (see below), whose sum is σ = 103487982. Its totient is φ = 15921216.

The previous prime is 47763649. The next prime is 47763679. The reversal of 47763666 is 66636774.

It can be written as a sum of positive squares in only one way, i.e., 46991025 + 772641 = 6855^2 + 879^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1326751 + ... + 1326786.

Almost surely, 2^47763666 is an apocalyptic number.

47763666 is an abundant number, since it is smaller than the sum of its proper divisors (55724316).

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

47763666 is a wasteful number, since it uses less digits than its factorization.

47763666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653545 (or 2653542 counting only the distinct ones).

The product of its digits is 762048, while the sum is 45.

The square root of 47763666 is about 6911.1262468573. The cubic root of 47763666 is about 362.8266822816.

The spelling of 47763666 in words is "forty-seven million, seven hundred sixty-three thousand, six hundred sixty-six".