97212405 has 8 divisors (see below), whose sum is σ = 155539872. Its totient is φ = 51846608.

The previous prime is 97212371. The next prime is 97212433. The reversal of 97212405 is 50421279.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97212405 - 2⁸ = 97212149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3240399 + ... + 3240428.

It is an arithmetic number, because the mean of its divisors is an integer number (19442484).

Almost surely, 2^97212405 is an apocalyptic number.

It is an amenable number.

97212405 is a deficient number, since it is larger than the sum of its proper divisors (58327467).

97212405 is a wasteful number, since it uses less digits than its factorization.

97212405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6480835.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 97212405 is about 9859.6351352370. The cubic root of 97212405 is about 459.8052184158.

The spelling of 97212405 in words is "ninety-seven million, two hundred twelve thousand, four hundred five".