92421961 has 4 divisors (see below), whose sum is σ = 93460500. Its totient is φ = 91383424.

The previous prime is 92421949. The next prime is 92421971. The reversal of 92421961 is 16912429.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9884736 + 82537225 = 3144^2 + 9085^2 .

It is a cyclic number.

It is not a de Polignac number, because 92421961 - 2⁵ = 92421929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (92421971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519136 + ... + 519313.

It is an arithmetic number, because the mean of its divisors is an integer number (23365125).

Almost surely, 2^92421961 is an apocalyptic number.

It is an amenable number.

92421961 is a deficient number, since it is larger than the sum of its proper divisors (1038539).

92421961 is a wasteful number, since it uses less digits than its factorization.

92421961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038538.

The product of its digits is 7776, while the sum is 34.

The square root of 92421961 is about 9613.6341203522. The cubic root of 92421961 is about 452.1248659774.

The spelling of 92421961 in words is "ninety-two million, four hundred twenty-one thousand, nine hundred sixty-one".