92071997 has 4 divisors (see below), whose sum is σ = 93581436. Its totient is φ = 90562560.

The previous prime is 92071957. The next prime is 92071999. The reversal of 92071997 is 79917029.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79917029 = 1877 ⋅42577.

It can be written as a sum of positive squares in 2 ways, for example, as 33304441 + 58767556 = 5771^2 + 7666^2 .

It is a cyclic number.

It is not a de Polignac number, because 92071997 - 2⁶ = 92071933 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 (92071999) 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, 754628 + ... + 754749.

It is an arithmetic number, because the mean of its divisors is an integer number (23395359).

Almost surely, 2^92071997 is an apocalyptic number.

It is an amenable number.

92071997 is a deficient number, since it is larger than the sum of its proper divisors (1509439).

92071997 is a wasteful number, since it uses less digits than its factorization.

92071997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509438.

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 92071997 is about 9595.4154157076. The cubic root of 92071997 is about 451.5534737810.

The spelling of 92071997 in words is "ninety-two million, seventy-one thousand, nine hundred ninety-seven".