97739023 has 4 divisors (see below), whose sum is σ = 97806240. Its totient is φ = 97671808.

The previous prime is 97739003. The next prime is 97739027. The reversal of 97739023 is 32093779.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32093779 = 53 ⋅605543.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97739023 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 (97739027) 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, 31378 + ... + 34351.

It is an arithmetic number, because the mean of its divisors is an integer number (24451560).

Almost surely, 2^97739023 is an apocalyptic number.

97739023 is a deficient number, since it is larger than the sum of its proper divisors (67217).

97739023 is a wasteful number, since it uses less digits than its factorization.

97739023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67216.

The product of its (nonzero) digits is 71442, while the sum is 40.

The square root of 97739023 is about 9886.3048203057. The cubic root of 97739023 is about 460.6340076127.

It can be divided in two parts, 977 and 39023, that added together give a square (40000 = 200²).

The spelling of 97739023 in words is "ninety-seven million, seven hundred thirty-nine thousand, twenty-three".