47011491 has 24 divisors (see below), whose sum is σ = 72306000. Its totient is φ = 29348352.

The previous prime is 47011487. The next prime is 47011499. The reversal of 47011491 is 19411074.

It is not a de Polignac number, because 47011491 - 2² = 47011487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47011499) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13675 + ... + 16763.

It is an arithmetic number, because the mean of its divisors is an integer number (3012750).

Almost surely, 2^47011491 is an apocalyptic number.

47011491 is a deficient number, since it is larger than the sum of its proper divisors (25294509).

47011491 is a wasteful number, since it uses less digits than its factorization.

47011491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203 (or 3200 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 47011491 is about 6856.4926164913. The cubic root of 47011491 is about 360.9120162702.

The spelling of 47011491 in words is "forty-seven million, eleven thousand, four hundred ninety-one".