72675677 has 4 divisors (see below), whose sum is σ = 74222016. Its totient is φ = 71129340.

The previous prime is 72675649. The next prime is 72675679. The reversal of 72675677 is 77657627.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77657627 = 1321 ⋅58787.

It is a cyclic number.

It is not a de Polignac number, because 72675677 - 2¹² = 72671581 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 1546291 = 72675677 / (7 + 2 + 6 + 7 + 5 + 6 + 7 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72675679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773099 + ... + 773192.

It is an arithmetic number, because the mean of its divisors is an integer number (18555504).

Almost surely, 2^72675677 is an apocalyptic number.

It is an amenable number.

72675677 is a deficient number, since it is larger than the sum of its proper divisors (1546339).

72675677 is a wasteful number, since it uses less digits than its factorization.

72675677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546338.

The product of its digits is 864360, while the sum is 47.

The square root of 72675677 is about 8525.0030498528. The cubic root of 72675677 is about 417.3140711785.

The spelling of 72675677 in words is "seventy-two million, six hundred seventy-five thousand, six hundred seventy-seven".