47642969 has 8 divisors (see below), whose sum is σ = 53766720. Its totient is φ = 41818000.

The previous prime is 47642957. The next prime is 47642971. The reversal of 47642969 is 96924674.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47642969 - 2²⁴ = 30865753 is a prime.

It is a super-2 number, since 2×47642969² = 4539704990269922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47642999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74357 + ... + 74994.

It is an arithmetic number, because the mean of its divisors is an integer number (6720840).

Almost surely, 2^47642969 is an apocalyptic number.

It is an amenable number.

47642969 is a deficient number, since it is larger than the sum of its proper divisors (6123751).

47642969 is a wasteful number, since it uses less digits than its factorization.

47642969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149391.

The product of its digits is 653184, while the sum is 47.

The square root of 47642969 is about 6902.3886445201. The cubic root of 47642969 is about 362.5208080010.

The spelling of 47642969 in words is "forty-seven million, six hundred forty-two thousand, nine hundred sixty-nine".