47351979 has 8 divisors (see below), whose sum is σ = 70151120. Its totient is φ = 31567968.

The previous prime is 47351957. The next prime is 47351981. The reversal of 47351979 is 97915374.

It is not a de Polignac number, because 47351979 - 2⁹ = 47351467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47351929) 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, 876862 + ... + 876915.

It is an arithmetic number, because the mean of its divisors is an integer number (8768890).

Almost surely, 2^47351979 is an apocalyptic number.

47351979 is a deficient number, since it is larger than the sum of its proper divisors (22799141).

47351979 is a wasteful number, since it uses less digits than its factorization.

47351979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753786 (or 1753780 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 47351979 is about 6881.2774250135. The cubic root of 47351979 is about 361.7812415159.

The spelling of 47351979 in words is "forty-seven million, three hundred fifty-one thousand, nine hundred seventy-nine".