72878601 has 8 divisors (see below), whose sum is σ = 98502880. Its totient is φ = 47920032.

The previous prime is 72878579. The next prime is 72878669. The reversal of 72878601 is 10687827.

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

It is not a de Polignac number, because 72878601 - 2¹⁰ = 72877577 is a prime.

It is a super-2 number, since 2×72878601² = 10622580967434402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72878601.

It is not an unprimeable number, because it can be changed into a prime (72878681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166171 + ... + 166608.

It is an arithmetic number, because the mean of its divisors is an integer number (12312860).

Almost surely, 2^72878601 is an apocalyptic number.

It is an amenable number.

72878601 is a deficient number, since it is larger than the sum of its proper divisors (25624279).

72878601 is a wasteful number, since it uses less digits than its factorization.

72878601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332855.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 72878601 is about 8536.8964501158. The cubic root of 72878601 is about 417.7021163915.

The spelling of 72878601 in words is "seventy-two million, eight hundred seventy-eight thousand, six hundred one".