72697205 has 16 divisors (see below), whose sum is σ = 99874944. Its totient is φ = 49761600.

The previous prime is 72697189. The next prime is 72697241. The reversal of 72697205 is 50279627.

It is not a de Polignac number, because 72697205 - 2⁴ = 72697189 is a prime.

It is a super-2 number, since 2×72697205² = 10569767229624050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23054 + ... + 26016.

It is an arithmetic number, because the mean of its divisors is an integer number (6242184).

Almost surely, 2^72697205 is an apocalyptic number.

It is an amenable number.

72697205 is a deficient number, since it is larger than the sum of its proper divisors (27177739).

72697205 is a wasteful number, since it uses less digits than its factorization.

72697205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 72697205 is about 8526.2655952064. The cubic root of 72697205 is about 417.3552727229.

The spelling of 72697205 in words is "seventy-two million, six hundred ninety-seven thousand, two hundred five".