636479076 has 24 divisors (see below), whose sum is σ = 1516717440. Its totient is φ = 207645472.

The previous prime is 636479057. The next prime is 636479101. The reversal of 636479076 is 670974636.

It is a super-3 number, since 3×636479076³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 563691 + ... + 564818.

It is an arithmetic number, because the mean of its divisors is an integer number (63196560).

Almost surely, 2^636479076 is an apocalyptic number.

It is an amenable number.

636479076 is an abundant number, since it is smaller than the sum of its proper divisors (880238364).

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

636479076 is a wasteful number, since it uses less digits than its factorization.

636479076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128563 (or 1128561 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 48.

The square root of 636479076 is about 25228.5369373652. The cubic root of 636479076 is about 860.1906355827.

The spelling of 636479076 in words is "six hundred thirty-six million, four hundred seventy-nine thousand, seventy-six".