72976841 has 4 divisors (see below), whose sum is σ = 83402112. Its totient is φ = 62551572.

The previous prime is 72976831. The next prime is 72976873. The reversal of 72976841 is 14867927.

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: 14867927 = 109 ⋅136403.

It is a cyclic number.

It is not a de Polignac number, because 72976841 - 2¹⁴ = 72960457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72976792 and 72976801.

It is not an unprimeable number, because it can be changed into a prime (72976831) 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, 5212625 + ... + 5212638.

It is an arithmetic number, because the mean of its divisors is an integer number (20850528).

Almost surely, 2^72976841 is an apocalyptic number.

It is an amenable number.

72976841 is a deficient number, since it is larger than the sum of its proper divisors (10425271).

72976841 is a wasteful number, since it uses less digits than its factorization.

72976841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10425270.

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

The square root of 72976841 is about 8542.6483598472. The cubic root of 72976841 is about 417.8897189287.

The spelling of 72976841 in words is "seventy-two million, nine hundred seventy-six thousand, eight hundred forty-one".