73342639 has 2 divisors, whose sum is σ = 73342640. Its totient is φ = 73342638.

The previous prime is 73342631. The next prime is 73342657. The reversal of 73342639 is 93624337.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73342639 - 2³ = 73342631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73342598 and 73342607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73342631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36671319 + 36671320.

It is an arithmetic number, because the mean of its divisors is an integer number (36671320).

Almost surely, 2^73342639 is an apocalyptic number.

73342639 is a deficient number, since it is larger than the sum of its proper divisors (1).

73342639 is an equidigital number, since it uses as much as digits as its factorization.

73342639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 37.

The square root of 73342639 is about 8564.0317024168. The cubic root of 73342639 is about 418.5867826370.

The spelling of 73342639 in words is "seventy-three million, three hundred forty-two thousand, six hundred thirty-nine".