677720241 has 12 divisors (see below), whose sum is σ = 1067922960. Its totient is φ = 410739480.

The previous prime is 677720191. The next prime is 677720243. The reversal of 677720241 is 142027776.

It is a happy number.

It is not a de Polignac number, because 677720241 - 2⁹ = 677719729 is a prime.

It is a super-2 number, since 2×677720241² = 918609450122196162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 677720196 and 677720205.

It is not an unprimeable number, because it can be changed into a prime (677720243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3422731 + ... + 3422928.

It is an arithmetic number, because the mean of its divisors is an integer number (88993580).

Almost surely, 2^677720241 is an apocalyptic number.

It is an amenable number.

677720241 is a deficient number, since it is larger than the sum of its proper divisors (390202719).

677720241 is a wasteful number, since it uses less digits than its factorization.

677720241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6845676 (or 6845673 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 677720241 is about 26033.0605384768. The cubic root of 677720241 is about 878.3821173027.

The spelling of 677720241 in words is "six hundred seventy-seven million, seven hundred twenty thousand, two hundred forty-one".