72038801 has 4 divisors (see below), whose sum is σ = 73053504. Its totient is φ = 71024100.

The previous prime is 72038789. The next prime is 72038807. The reversal of 72038801 is 10883027.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10883027 = 1289 ⋅8443.

It is a cyclic number.

It is not a de Polignac number, because 72038801 - 2¹⁴ = 72022417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72038807) 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, 507245 + ... + 507386.

It is an arithmetic number, because the mean of its divisors is an integer number (18263376).

Almost surely, 2^72038801 is an apocalyptic number.

72038801 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

72038801 is a deficient number, since it is larger than the sum of its proper divisors (1014703).

72038801 is a wasteful number, since it uses less digits than its factorization.

72038801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014702.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 72038801 is about 8487.5674371400. The cubic root of 72038801 is about 416.0914820535.

The spelling of 72038801 in words is "seventy-two million, thirty-eight thousand, eight hundred one".