97273729 has 16 divisors (see below), whose sum is σ = 112694400. Its totient is φ = 82243584.

The previous prime is 97273681. The next prime is 97273769. The reversal of 97273729 is 92737279.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97273729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97273769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249867 + ... + 250255.

It is an arithmetic number, because the mean of its divisors is an integer number (7043400).

Almost surely, 2^97273729 is an apocalyptic number.

It is an amenable number.

97273729 is a deficient number, since it is larger than the sum of its proper divisors (15420671).

97273729 is a wasteful number, since it uses less digits than its factorization.

97273729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792.

The product of its digits is 333396, while the sum is 46.

The square root of 97273729 is about 9862.7444963357. The cubic root of 97273729 is about 459.9018836105.

It can be divided in two parts, 9727 and 3729, that added together give a square (13456 = 116²).

The spelling of 97273729 in words is "ninety-seven million, two hundred seventy-three thousand, seven hundred twenty-nine".