407649 has 12 divisors (see below), whose sum is σ = 597968. Its totient is φ = 246840.

The previous prime is 407639. The next prime is 407651. The reversal of 407649 is 946704.

It is not a de Polignac number, because 407649 - 2⁴ = 407633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (407639) 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, 199 + ... + 924.

2⁴⁰⁷⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

407649 is a deficient number, since it is larger than the sum of its proper divisors (190319).

407649 is a wasteful number, since it uses less digits than its factorization.

407649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 407649 is about 638.4739618810. The cubic root of 407649 is about 74.1473203478.

The spelling of 407649 in words is "four hundred seven thousand, six hundred forty-nine".