97205405 has 16 divisors (see below), whose sum is σ = 134737344. Its totient is φ = 66535680.

The previous prime is 97205399. The next prime is 97205453. The reversal of 97205405 is 50450279.

It is not a de Polignac number, because 97205405 - 2¹⁴ = 97189021 is a prime.

It is a super-2 number, since 2×97205405² = 18897781522428050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51047 + ... + 52916.

It is an arithmetic number, because the mean of its divisors is an integer number (8421084).

Almost surely, 2^97205405 is an apocalyptic number.

It is an amenable number.

97205405 is a deficient number, since it is larger than the sum of its proper divisors (37531939).

97205405 is a wasteful number, since it uses less digits than its factorization.

97205405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103996.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 97205405 is about 9859.2801461364. The cubic root of 97205405 is about 459.7941817113.

It can be divided in two parts, 97 and 205405, that added together give a palindrome (205502).

The spelling of 97205405 in words is "ninety-seven million, two hundred five thousand, four hundred five".