72034577 has 4 divisors (see below), whose sum is σ = 72052080. Its totient is φ = 72017076.

The previous prime is 72034531. The next prime is 72034601. The reversal of 72034577 is 77543027.

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: 77543027 = 149 ⋅520423.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72034577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72034517) 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, 1178 + ... + 12060.

It is an arithmetic number, because the mean of its divisors is an integer number (18013020).

Almost surely, 2^72034577 is an apocalyptic number.

It is an amenable number.

72034577 is a deficient number, since it is larger than the sum of its proper divisors (17503).

72034577 is a wasteful number, since it uses less digits than its factorization.

72034577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17502.

The product of its (nonzero) digits is 41160, while the sum is 35.

The square root of 72034577 is about 8487.3185989451. The cubic root of 72034577 is about 416.0833493771.

The spelling of 72034577 in words is "seventy-two million, thirty-four thousand, five hundred seventy-seven".