72826623 has 12 divisors (see below), whose sum is σ = 111382128. Its totient is φ = 45695040.

The previous prime is 72826613. The next prime is 72826651. The reversal of 72826623 is 32662827.

72826623 is a `hidden beast` number, since 7 + 2 + 8 + 26 + 623 = 666.

It is not a de Polignac number, because 72826623 - 2⁹ = 72826111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72826613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237843 + ... + 238148.

It is an arithmetic number, because the mean of its divisors is an integer number (9281844).

Almost surely, 2^72826623 is an apocalyptic number.

72826623 is a deficient number, since it is larger than the sum of its proper divisors (38555505).

72826623 is a wasteful number, since it uses less digits than its factorization.

72826623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476014 (or 476011 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 72826623 is about 8533.8515923351. The cubic root of 72826623 is about 417.6027891818.

The spelling of 72826623 in words is "seventy-two million, eight hundred twenty-six thousand, six hundred twenty-three".