77238841 has 8 divisors (see below), whose sum is σ = 79109568. Its totient is φ = 75390000.

The previous prime is 77238827. The next prime is 77238881. The reversal of 77238841 is 14883277.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77238841 - 2⁵ = 77238809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77238794 and 77238803.

It is not an unprimeable number, because it can be changed into a prime (77238881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1786 + ... + 12556.

It is an arithmetic number, because the mean of its divisors is an integer number (9888696).

Almost surely, 2^77238841 is an apocalyptic number.

77238841 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

77238841 is a deficient number, since it is larger than the sum of its proper divisors (1870727).

77238841 is a wasteful number, since it uses less digits than its factorization.

77238841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10943.

The product of its digits is 75264, while the sum is 40.

The square root of 77238841 is about 8788.5630793663. The cubic root of 77238841 is about 425.8715053252.

The spelling of 77238841 in words is "seventy-seven million, two hundred thirty-eight thousand, eight hundred forty-one".