72076737 has 4 divisors (see below), whose sum is σ = 96102320. Its totient is φ = 48051156.

The previous prime is 72076727. The next prime is 72076751. The reversal of 72076737 is 73767027.

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 not a de Polignac number, because 72076737 - 2⁶ = 72076673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72076695 and 72076704.

It is not an unprimeable number, because it can be changed into a prime (72076727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12012787 + ... + 12012792.

It is an arithmetic number, because the mean of its divisors is an integer number (24025580).

Almost surely, 2^72076737 is an apocalyptic number.

It is an amenable number.

72076737 is a deficient number, since it is larger than the sum of its proper divisors (24025583).

72076737 is a wasteful number, since it uses less digits than its factorization.

72076737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24025582.

The product of its (nonzero) digits is 86436, while the sum is 39.

The square root of 72076737 is about 8489.8019411527. The cubic root of 72076737 is about 416.1645078686.

The spelling of 72076737 in words is "seventy-two million, seventy-six thousand, seven hundred thirty-seven".