72547814 has 8 divisors (see below), whose sum is σ = 114549240. Its totient is φ = 34364736.

The previous prime is 72547807. The next prime is 72547829. The reversal of 72547814 is 41874527.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 1909153 = 72547814 / (7 + 2 + 5 + 4 + 7 + 8 + 1 + 4).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954539 + ... + 954614.

It is an arithmetic number, because the mean of its divisors is an integer number (14318655).

Almost surely, 2^72547814 is an apocalyptic number.

72547814 is a deficient number, since it is larger than the sum of its proper divisors (42001426).

72547814 is a wasteful number, since it uses less digits than its factorization.

72547814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909174.

The product of its digits is 62720, while the sum is 38.

The square root of 72547814 is about 8517.5004549457. The cubic root of 72547814 is about 417.0691916692.

The spelling of 72547814 in words is "seventy-two million, five hundred forty-seven thousand, eight hundred fourteen".