47902807 has 4 divisors (see below), whose sum is σ = 47945160. Its totient is φ = 47860456.

The previous prime is 47902783. The next prime is 47902837. The reversal of 47902807 is 70820974.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47902807 - 2¹⁹ = 47378519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47902837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19432 + ... + 21757.

It is an arithmetic number, because the mean of its divisors is an integer number (11986290).

Almost surely, 2^47902807 is an apocalyptic number.

47902807 is a deficient number, since it is larger than the sum of its proper divisors (42353).

47902807 is a wasteful number, since it uses less digits than its factorization.

47902807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42352.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 47902807 is about 6921.1853753530. The cubic root of 47902807 is about 363.1786592051.

The spelling of 47902807 in words is "forty-seven million, nine hundred two thousand, eight hundred seven".