647654476 has 24 divisors (see below), whose sum is σ = 1325434880. Its totient is φ = 271110672.

The previous prime is 647654473. The next prime is 647654479. The reversal of 647654476 is 674456746.

It is an interprime number because it is at equal distance from previous prime (647654473) and next prime (647654479).

It is not an unprimeable number, because it can be changed into a prime (647654473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267756 + ... + 270163.

Almost surely, 2^647654476 is an apocalyptic number.

It is an amenable number.

647654476 is an abundant number, since it is smaller than the sum of its proper divisors (677780404).

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

647654476 is a wasteful number, since it uses less digits than its factorization.

647654476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537973 (or 537971 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 49.

The square root of 647654476 is about 25449.0564854574. The cubic root of 647654476 is about 865.1959087154.

The spelling of 647654476 in words is "six hundred forty-seven million, six hundred fifty-four thousand, four hundred seventy-six".