7713649 has 8 divisors (see below), whose sum is σ = 7976960. Its totient is φ = 7453296.

The previous prime is 7713613. The next prime is 7713659. The reversal of 7713649 is 9463177.

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 7713649 - 2⁹ = 7713137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7713659) 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, 5392 + ... + 6670.

It is an arithmetic number, because the mean of its divisors is an integer number (997120).

Almost surely, 2^7713649 is an apocalyptic number.

It is an amenable number.

7713649 is a deficient number, since it is larger than the sum of its proper divisors (263311).

7713649 is a wasteful number, since it uses less digits than its factorization.

7713649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479.

The product of its digits is 31752, while the sum is 37.

The square root of 7713649 is about 2777.3456752806. The cubic root of 7713649 is about 197.5846904851.

The spelling of 7713649 in words is "seven million, seven hundred thirteen thousand, six hundred forty-nine".