97209741 has 4 divisors (see below), whose sum is σ = 129612992. Its totient is φ = 64806492.

The previous prime is 97209733. The next prime is 97209779. The reversal of 97209741 is 14790279.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 97209741 - 2³ = 97209733 is a prime.

It is the 9860-th Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97209741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97209701) by changing a digit.

It is a nontrivial repunit in base 9859.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16201621 + ... + 16201626.

It is an arithmetic number, because the mean of its divisors is an integer number (32403248).

Almost surely, 2^97209741 is an apocalyptic number.

It is an amenable number.

97209741 is a deficient number, since it is larger than the sum of its proper divisors (32403251).

97209741 is a wasteful number, since it uses less digits than its factorization.

97209741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32403250.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 97209741 is about 9859.5000380344. The cubic root of 97209741 is about 459.8010182239.

The spelling of 97209741 in words is "ninety-seven million, two hundred nine thousand, seven hundred forty-one".