47287790 has 16 divisors (see below), whose sum is σ = 92856240. Its totient is φ = 17195520.

The previous prime is 47287787. The next prime is 47287811. The reversal of 47287790 is 9778274.

It is a super-2 number, since 2×47287790² = 4472270166168200, which contains 22 as substring.

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, 214835 + ... + 215054.

It is an arithmetic number, because the mean of its divisors is an integer number (5803515).

Almost surely, 2^47287790 is an apocalyptic number.

47287790 is a deficient number, since it is larger than the sum of its proper divisors (45568450).

47287790 is a wasteful number, since it uses less digits than its factorization.

47287790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429907.

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 47287790 is about 6876.6118110593. The cubic root of 47287790 is about 361.6176941295.

The spelling of 47287790 in words is "forty-seven million, two hundred eighty-seven thousand, seven hundred ninety".