15948947 has 4 divisors (see below), whose sum is σ = 18227376. Its totient is φ = 13670520.

The previous prime is 15948937. The next prime is 15948953. The reversal of 15948947 is 74984951.

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 15948947 - 2⁴ = 15948931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15948937) 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, 1139204 + ... + 1139217.

It is an arithmetic number, because the mean of its divisors is an integer number (4556844).

Almost surely, 2^15948947 is an apocalyptic number.

15948947 is a deficient number, since it is larger than the sum of its proper divisors (2278429).

15948947 is an equidigital number, since it uses as much as digits as its factorization.

15948947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278428.

The product of its digits is 362880, while the sum is 47.

The square root of 15948947 is about 3993.6132762199. The cubic root of 15948947 is about 251.7159129588.

The spelling of 15948947 in words is "fifteen million, nine hundred forty-eight thousand, nine hundred forty-seven".