47029815 has 80 divisors (see below), whose sum is σ = 98480448. Its totient is φ = 21026304.

The previous prime is 47029813. The next prime is 47029823. The reversal of 47029815 is 51892074.

It is not a de Polignac number, because 47029815 - 2¹ = 47029813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47029815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47029813) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 150099 + ... + 150411.

Almost surely, 2^47029815 is an apocalyptic number.

47029815 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

47029815 is an abundant number, since it is smaller than the sum of its proper divisors (51450633).

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

47029815 is a wasteful number, since it uses less digits than its factorization.

47029815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 47029815 is about 6857.8287380191. The cubic root of 47029815 is about 360.9589019187.

The spelling of 47029815 in words is "forty-seven million, twenty-nine thousand, eight hundred fifteen".