662877947 has 18 divisors (see below), whose sum is σ = 711572364. Its totient is φ = 617371560.

The previous prime is 662877937. The next prime is 662877949. The reversal of 662877947 is 749778266.

It is not a de Polignac number, because 662877947 - 2⁶ = 662877883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 662877892 and 662877901.

It is not an unprimeable number, because it can be changed into a prime (662877949) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5060072 + ... + 5060202.

It is an arithmetic number, because the mean of its divisors is an integer number (39531798).

Almost surely, 2^662877947 is an apocalyptic number.

662877947 is a deficient number, since it is larger than the sum of its proper divisors (48694417).

662877947 is a wasteful number, since it uses less digits than its factorization.

662877947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 257 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 56.

The square root of 662877947 is about 25746.4161972108. The cubic root of 662877947 is about 871.9224441271.

The spelling of 662877947 in words is "six hundred sixty-two million, eight hundred seventy-seven thousand, nine hundred forty-seven".