713649 has 4 divisors (see below), whose sum is σ = 951536. Its totient is φ = 475764.

The previous prime is 713627. The next prime is 713653. The reversal of 713649 is 946317.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 713649 - 2¹⁵ = 680881 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (713149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118939 + ... + 118944.

It is an arithmetic number, because the mean of its divisors is an integer number (237884).

2⁷¹³⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

713649 is a deficient number, since it is larger than the sum of its proper divisors (237887).

713649 is a wasteful number, since it uses less digits than its factorization.

713649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237886.

The product of its digits is 4536, while the sum is 30.

The square root of 713649 is about 844.7774854954. Note that the first 3 decimals coincide. The cubic root of 713649 is about 89.3637847599.

The spelling of 713649 in words is "seven hundred thirteen thousand, six hundred forty-nine".