407649007 has 4 divisors (see below), whose sum is σ = 408824136. Its totient is φ = 406473880.

The previous prime is 407648993. The next prime is 407649041. The reversal of 407649007 is 700946704.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 407649007 - 2¹⁹ = 407124719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407649707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587044 + ... + 587737.

It is an arithmetic number, because the mean of its divisors is an integer number (102206034).

Almost surely, 2^407649007 is an apocalyptic number.

407649007 is a deficient number, since it is larger than the sum of its proper divisors (1175129).

407649007 is a wasteful number, since it uses less digits than its factorization.

407649007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175128.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 407649007 is about 20190.3196359047. The cubic root of 407649007 is about 741.4732077220.

The spelling of 407649007 in words is "four hundred seven million, six hundred forty-nine thousand, seven".