947650977 has 48 divisors (see below), whose sum is σ = 1690648960. Its totient is φ = 498099456.

The previous prime is 947650969. The next prime is 947651017. The reversal of 947650977 is 779056749.

It is a happy number.

It is not a de Polignac number, because 947650977 - 2³ = 947650969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (947650927) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 249549 + ... + 253317.

Almost surely, 2^947650977 is an apocalyptic number.

It is an amenable number.

947650977 is a deficient number, since it is larger than the sum of its proper divisors (742997983).

947650977 is a wasteful number, since it uses less digits than its factorization.

947650977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102 (or 4099 counting only the distinct ones).

The product of its (nonzero) digits is 3333960, while the sum is 54.

The square root of 947650977 is about 30783.9402448744. The cubic root of 947650977 is about 982.2366576623.

The spelling of 947650977 in words is "nine hundred forty-seven million, six hundred fifty thousand, nine hundred seventy-seven".