97213269 has 4 divisors (see below), whose sum is σ = 129617696. Its totient is φ = 64808844.

The previous prime is 97213261. The next prime is 97213279. The reversal of 97213269 is 96231279.

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 97213269 - 2³ = 97213261 is a prime.

It is a super-2 number, since 2×97213269² = 18900839339332722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97213261) 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, 16202209 + ... + 16202214.

It is an arithmetic number, because the mean of its divisors is an integer number (32404424).

Almost surely, 2^97213269 is an apocalyptic number.

It is an amenable number.

97213269 is a deficient number, since it is larger than the sum of its proper divisors (32404427).

97213269 is a wasteful number, since it uses less digits than its factorization.

97213269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32404426.

The product of its digits is 40824, while the sum is 39.

The square root of 97213269 is about 9859.6789501484. The cubic root of 97213269 is about 459.8065806238.

It can be divided in two parts, 972 and 13269, that added together give a palindrome (14241).

The spelling of 97213269 in words is "ninety-seven million, two hundred thirteen thousand, two hundred sixty-nine".