72497616 has 40 divisors (see below), whose sum is σ = 197145120. Its totient is φ = 22893696.

The previous prime is 72497611. The next prime is 72497629. The reversal of 72497616 is 61679427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72497611) 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 7 ways as a sum of consecutive naturals, for example, 38835 + ... + 40658.

It is an arithmetic number, because the mean of its divisors is an integer number (4928628).

Almost surely, 2^72497616 is an apocalyptic number.

72497616 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

72497616 is an abundant number, since it is smaller than the sum of its proper divisors (124647504).

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

72497616 is a wasteful number, since it uses less digits than its factorization.

72497616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79523 (or 79517 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 72497616 is about 8514.5531885120. The cubic root of 72497616 is about 416.9729752627.

The spelling of 72497616 in words is "seventy-two million, four hundred ninety-seven thousand, six hundred sixteen".