72772441 has 4 divisors (see below), whose sum is σ = 83168512. Its totient is φ = 62376372.

The previous prime is 72772439. The next prime is 72772463. The reversal of 72772441 is 14427727.

It is a happy number.

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: 14427727 = 113 ⋅127679.

It is a cyclic number.

It is not a de Polignac number, because 72772441 - 2¹ = 72772439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72772397 and 72772406.

It is not an unprimeable number, because it can be changed into a prime (72772411) 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, 5198025 + ... + 5198038.

It is an arithmetic number, because the mean of its divisors is an integer number (20792128).

Almost surely, 2^72772441 is an apocalyptic number.

It is an amenable number.

72772441 is a deficient number, since it is larger than the sum of its proper divisors (10396071).

72772441 is a wasteful number, since it uses less digits than its factorization.

72772441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10396070.

The product of its digits is 21952, while the sum is 34.

The square root of 72772441 is about 8530.6764679010. The cubic root of 72772441 is about 417.4991999220.

The spelling of 72772441 in words is "seventy-two million, seven hundred seventy-two thousand, four hundred forty-one".