72699020 has 48 divisors (see below), whose sum is σ = 156280320. Its totient is φ = 28400064.

The previous prime is 72699017. The next prime is 72699023. The reversal of 72699020 is 2099627.

It is an interprime number because it is at equal distance from previous prime (72699017) and next prime (72699023).

It is a super-3 number, since 3×72699020³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (72699023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304061 + ... + 304299.

It is an arithmetic number, because the mean of its divisors is an integer number (3255840).

Almost surely, 2^72699020 is an apocalyptic number.

It is an amenable number.

72699020 is an abundant number, since it is smaller than the sum of its proper divisors (83581300).

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

72699020 is a wasteful number, since it uses less digits than its factorization.

72699020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 72699020 is about 8526.3720303538. The cubic root of 72699020 is about 417.3587460042.

The spelling of 72699020 in words is "seventy-two million, six hundred ninety-nine thousand, twenty".