91862051 has 4 divisors (see below), whose sum is σ = 91906872. Its totient is φ = 91817232.

The previous prime is 91862011. The next prime is 91862059. The reversal of 91862051 is 15026819.

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

It is a cyclic number.

It is not a de Polignac number, because 91862051 - 2¹⁰ = 91861027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91861999 and 91862017.

It is not an unprimeable number, because it can be changed into a prime (91862059) 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, 19181 + ... + 23486.

It is an arithmetic number, because the mean of its divisors is an integer number (22976718).

Almost surely, 2^91862051 is an apocalyptic number.

91862051 is a deficient number, since it is larger than the sum of its proper divisors (44821).

91862051 is a wasteful number, since it uses less digits than its factorization.

91862051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44820.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 91862051 is about 9584.4692602147. The cubic root of 91862051 is about 451.2099962235.

The spelling of 91862051 in words is "ninety-one million, eight hundred sixty-two thousand, fifty-one".