91952947 has 4 divisors (see below), whose sum is σ = 92252776. Its totient is φ = 91653120.

The previous prime is 91952923. The next prime is 91952957. The reversal of 91952947 is 74925919.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91952947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91952897 and 91952906.

It is not an unprimeable number, because it can be changed into a prime (91952957) 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, 149454 + ... + 150067.

It is an arithmetic number, because the mean of its divisors is an integer number (23063194).

Almost surely, 2^91952947 is an apocalyptic number.

91952947 is a deficient number, since it is larger than the sum of its proper divisors (299829).

91952947 is a wasteful number, since it uses less digits than its factorization.

91952947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299828.

The product of its digits is 204120, while the sum is 46.

The square root of 91952947 is about 9589.2099257447. The cubic root of 91952947 is about 451.3587688070.

The spelling of 91952947 in words is "ninety-one million, nine hundred fifty-two thousand, nine hundred forty-seven".