72378675 has 36 divisors (see below), whose sum is σ = 132670824. Its totient is φ = 37699200.

The previous prime is 72378671. The next prime is 72378689. The reversal of 72378675 is 57687327.

It is not a de Polignac number, because 72378675 - 2² = 72378671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 72378675.

It is not an unprimeable number, because it can be changed into a prime (72378671) 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 35 ways as a sum of consecutive naturals, for example, 5935 + ... + 13415.

Almost surely, 2^72378675 is an apocalyptic number.

72378675 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

72378675 is a deficient number, since it is larger than the sum of its proper divisors (60292149).

72378675 is a wasteful number, since it uses less digits than its factorization.

72378675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7540 (or 7532 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 72378675 is about 8507.5657505540. The cubic root of 72378675 is about 416.7448191181.

The spelling of 72378675 in words is "seventy-two million, three hundred seventy-eight thousand, six hundred seventy-five".