72651246 has 8 divisors (see below), whose sum is σ = 145302504. Its totient is φ = 24217080.

The previous prime is 72651233. The next prime is 72651253. The reversal of 72651246 is 64215627.

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

72651246 is an admirable number.

It is a super-3 number, since 3×72651246³ (a number of 25 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 6054265 + ... + 6054276.

It is an arithmetic number, because the mean of its divisors is an integer number (18162813).

Almost surely, 2^72651246 is an apocalyptic number.

72651246 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72651246 is a wasteful number, since it uses less digits than its factorization.

72651246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12108546.

The product of its digits is 20160, while the sum is 33.

The square root of 72651246 is about 8523.5700266966. The cubic root of 72651246 is about 417.2673038457.

The spelling of 72651246 in words is "seventy-two million, six hundred fifty-one thousand, two hundred forty-six".