47720500 has 24 divisors (see below), whose sum is σ = 104222664. Its totient is φ = 19088000.

The previous prime is 47720467. The next prime is 47720537. The reversal of 47720500 is 502774.

It can be written as a sum of positive squares in 4 ways, for example, as 36 + 47720464 = 6^2 + 6908^2 .

It is a super-2 number, since 2×47720500² = 4554492240500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

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, 47221 + ... + 48220.

It is an arithmetic number, because the mean of its divisors is an integer number (4342611).

Almost surely, 2^47720500 is an apocalyptic number.

It is an amenable number.

47720500 is an abundant number, since it is smaller than the sum of its proper divisors (56502164).

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

47720500 is a wasteful number, since it uses less digits than its factorization.

47720500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95460 (or 95448 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 47720500 is about 6908.0026056741. The cubic root of 47720500 is about 362.7173488467.

The spelling of 47720500 in words is "forty-seven million, seven hundred twenty thousand, five hundred".