77723241 has 8 divisors (see below), whose sum is σ = 103683264. Its totient is φ = 51789360.

The previous prime is 77723209. The next prime is 77723263. The reversal of 77723241 is 14232777.

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

It is not a de Polignac number, because 77723241 - 2⁵ = 77723209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77723291) 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, 1996 + ... + 12626.

It is an arithmetic number, because the mean of its divisors is an integer number (12960408).

Almost surely, 2^77723241 is an apocalyptic number.

It is an amenable number.

77723241 is a deficient number, since it is larger than the sum of its proper divisors (25960023).

77723241 is a wasteful number, since it uses less digits than its factorization.

77723241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13071.

The product of its digits is 16464, while the sum is 33.

The square root of 77723241 is about 8816.0785500130. The cubic root of 77723241 is about 426.7599288182.

The spelling of 77723241 in words is "seventy-seven million, seven hundred twenty-three thousand, two hundred forty-one".