92721434 has 64 divisors (see below), whose sum is σ = 167795712. Its totient is φ = 38016000.

The previous prime is 92721397. The next prime is 92721437. The reversal of 92721434 is 43412729.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 92721434.

It is not an unprimeable number, because it can be changed into a prime (92721437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 917984 + ... + 918084.

It is an arithmetic number, because the mean of its divisors is an integer number (2621808).

Almost surely, 2^92721434 is an apocalyptic number.

92721434 is a deficient number, since it is larger than the sum of its proper divisors (75074278).

92721434 is a wasteful number, since it uses less digits than its factorization.

92721434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231.

The product of its digits is 12096, while the sum is 32.

The square root of 92721434 is about 9629.1969550944. The cubic root of 92721434 is about 452.6126764771.

The spelling of 92721434 in words is "ninety-two million, seven hundred twenty-one thousand, four hundred thirty-four".