72347074 has 8 divisors (see below), whose sum is σ = 109375488. Its totient is φ = 35888580.

The previous prime is 72347063. The next prime is 72347089. The reversal of 72347074 is 47074327.

It is a happy number.

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

It is a super-2 number, since 2×72347074² = 10468198232722952, which contains 22 as substring.

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

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, 142162 + ... + 142669.

It is an arithmetic number, because the mean of its divisors is an integer number (13671936).

Almost surely, 2^72347074 is an apocalyptic number.

72347074 is a deficient number, since it is larger than the sum of its proper divisors (37028414).

72347074 is a wasteful number, since it uses less digits than its factorization.

72347074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284960.

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 72347074 is about 8505.7083185353. The cubic root of 72347074 is about 416.6841591234.

The spelling of 72347074 in words is "seventy-two million, three hundred forty-seven thousand, seventy-four".