72838079 has 8 divisors (see below), whose sum is σ = 76968960. Its totient is φ = 68787576.

The previous prime is 72838067. The next prime is 72838091. The reversal of 72838079 is 97083827.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72838067) and next prime (72838091).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72838079 - 2¹⁶ = 72772543 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 (72838009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18227 + ... + 21860.

It is an arithmetic number, because the mean of its divisors is an integer number (9621120).

Almost surely, 2^72838079 is an apocalyptic number.

72838079 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

72838079 is a deficient number, since it is larger than the sum of its proper divisors (4130881).

72838079 is a wasteful number, since it uses less digits than its factorization.

72838079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40189.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 72838079 is about 8534.5227751761. The cubic root of 72838079 is about 417.6246850514.

The spelling of 72838079 in words is "seventy-two million, eight hundred thirty-eight thousand, seventy-nine".