72677741 has 4 divisors (see below), whose sum is σ = 75183900. Its totient is φ = 70171584.

The previous prime is 72677719. The next prime is 72677743. The reversal of 72677741 is 14777627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14777627 = 491 ⋅30097.

It can be written as a sum of positive squares in 2 ways, for example, as 38502025 + 34175716 = 6205^2 + 5846^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72677741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72677743) 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, 1253036 + ... + 1253093.

It is an arithmetic number, because the mean of its divisors is an integer number (18795975).

Almost surely, 2^72677741 is an apocalyptic number.

It is an amenable number.

72677741 is a deficient number, since it is larger than the sum of its proper divisors (2506159).

72677741 is a wasteful number, since it uses less digits than its factorization.

72677741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506158.

The product of its digits is 115248, while the sum is 41.

The square root of 72677741 is about 8525.1241046685. The cubic root of 72677741 is about 417.3180217350.

The spelling of 72677741 in words is "seventy-two million, six hundred seventy-seven thousand, seven hundred forty-one".