77670441 has 16 divisors (see below), whose sum is σ = 117875520. Its totient is φ = 50516640.

The previous prime is 77670431. The next prime is 77670443. The reversal of 77670441 is 14407677.

It is not a de Polignac number, because 77670441 - 2²³ = 69281833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77670396 and 77670405.

It is not an unprimeable number, because it can be changed into a prime (77670443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33975 + ... + 36188.

It is an arithmetic number, because the mean of its divisors is an integer number (7367220).

Almost surely, 2^77670441 is an apocalyptic number.

It is an amenable number.

77670441 is a deficient number, since it is larger than the sum of its proper divisors (40205079).

77670441 is a wasteful number, since it uses less digits than its factorization.

77670441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70213 (or 70207 counting only the distinct ones).

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

The square root of 77670441 is about 8813.0835125965. The cubic root of 77670441 is about 426.6632694906.

It can be divided in two parts, 776 and 70441, that added together give a palindrome (71217).

The spelling of 77670441 in words is "seventy-seven million, six hundred seventy thousand, four hundred forty-one".