47261979 has 6 divisors (see below), whose sum is σ = 68267316. Its totient is φ = 31507980.

The previous prime is 47261969. The next prime is 47261983. The reversal of 47261979 is 97916274.

It is not a de Polignac number, because 47261979 - 2⁵ = 47261947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47261939) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2625657 + ... + 2625674.

It is an arithmetic number, because the mean of its divisors is an integer number (11377886).

Almost surely, 2^47261979 is an apocalyptic number.

47261979 is a deficient number, since it is larger than the sum of its proper divisors (21005337).

47261979 is a wasteful number, since it uses less digits than its factorization.

47261979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5251337 (or 5251334 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 47261979 is about 6874.7348312499. The cubic root of 47261979 is about 361.5518884672.

The spelling of 47261979 in words is "forty-seven million, two hundred sixty-one thousand, nine hundred seventy-nine".