47202987 has 16 divisors (see below), whose sum is σ = 69966848. Its totient is φ = 28110240.

The previous prime is 47202971. The next prime is 47202989. The reversal of 47202987 is 78920274.

It is not a de Polignac number, because 47202987 - 2⁴ = 47202971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47202989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18313 + ... + 20730.

It is an arithmetic number, because the mean of its divisors is an integer number (4372928).

Almost surely, 2^47202987 is an apocalyptic number.

47202987 is a deficient number, since it is larger than the sum of its proper divisors (22763861).

47202987 is a wasteful number, since it uses less digits than its factorization.

47202987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39090.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 47202987 is about 6870.4429988175. The cubic root of 47202987 is about 361.4013971724.

The spelling of 47202987 in words is "forty-seven million, two hundred two thousand, nine hundred eighty-seven".