72826073 has 4 divisors (see below), whose sum is σ = 75992448. Its totient is φ = 69659700.

The previous prime is 72826067. The next prime is 72826087. The reversal of 72826073 is 37062827.

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.

It is a cyclic number.

It is not a de Polignac number, because 72826073 - 2⁴ = 72826057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72826043) 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, 1583153 + ... + 1583198.

It is an arithmetic number, because the mean of its divisors is an integer number (18998112).

Almost surely, 2^72826073 is an apocalyptic number.

It is an amenable number.

72826073 is a deficient number, since it is larger than the sum of its proper divisors (3166375).

72826073 is a wasteful number, since it uses less digits than its factorization.

72826073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166374.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 72826073 is about 8533.8193676689. The cubic root of 72826073 is about 417.6017379083.

The spelling of 72826073 in words is "seventy-two million, eight hundred twenty-six thousand, seventy-three".