72473206 has 16 divisors (see below), whose sum is σ = 117213264. Its totient is φ = 33408864.

The previous prime is 72473197. The next prime is 72473209. The reversal of 72473206 is 60237427.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72473209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37885 + ... + 39751.

It is an arithmetic number, because the mean of its divisors is an integer number (7325829).

Almost surely, 2^72473206 is an apocalyptic number.

72473206 is a deficient number, since it is larger than the sum of its proper divisors (44740058).

72473206 is a wasteful number, since it uses less digits than its factorization.

72473206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 72473206 is about 8513.1196397091. The cubic root of 72473206 is about 416.9261716414.

The spelling of 72473206 in words is "seventy-two million, four hundred seventy-three thousand, two hundred six".