77940241 has 8 divisors (see below), whose sum is σ = 81751680. Its totient is φ = 74218608.

The previous prime is 77940217. The next prime is 77940271. The reversal of 77940241 is 14204977.

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 77940241 - 2²³ = 69551633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77940197 and 77940206.

It is not an unprimeable number, because it can be changed into a prime (77940211) 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, 20671 + ... + 24148.

It is an arithmetic number, because the mean of its divisors is an integer number (10218960).

Almost surely, 2^77940241 is an apocalyptic number.

It is an amenable number.

77940241 is a deficient number, since it is larger than the sum of its proper divisors (3811439).

77940241 is a wasteful number, since it uses less digits than its factorization.

77940241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44903.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 77940241 is about 8828.3770309157. The cubic root of 77940241 is about 427.1567249885.

The spelling of 77940241 in words is "seventy-seven million, nine hundred forty thousand, two hundred forty-one".