92739421 has 4 divisors (see below), whose sum is σ = 93005500. Its totient is φ = 92473344.

The previous prime is 92739397. The next prime is 92739431. The reversal of 92739421 is 12493729.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12493729 = 353 ⋅35393.

It can be written as a sum of positive squares in 2 ways, for example, as 46090521 + 46648900 = 6789^2 + 6830^2 .

It is a cyclic number.

It is not a de Polignac number, because 92739421 - 2²³ = 84350813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92739431) 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, 132516 + ... + 133213.

It is an arithmetic number, because the mean of its divisors is an integer number (23251375).

Almost surely, 2^92739421 is an apocalyptic number.

It is an amenable number.

92739421 is a deficient number, since it is larger than the sum of its proper divisors (266079).

92739421 is a wasteful number, since it uses less digits than its factorization.

92739421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266078.

The product of its digits is 27216, while the sum is 37.

The square root of 92739421 is about 9630.1308921530. The cubic root of 92739421 is about 452.6419419788.

The spelling of 92739421 in words is "ninety-two million, seven hundred thirty-nine thousand, four hundred twenty-one".