407724461 has 4 divisors (see below), whose sum is σ = 409520832. Its totient is φ = 405928092.

The previous prime is 407724407. The next prime is 407724479. The reversal of 407724461 is 164427704.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-407724461 is a prime.

It is a super-3 number, since 3×407724461³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407724661) 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, 897845 + ... + 898298.

It is an arithmetic number, because the mean of its divisors is an integer number (102380208).

Almost surely, 2^407724461 is an apocalyptic number.

It is an amenable number.

407724461 is a deficient number, since it is larger than the sum of its proper divisors (1796371).

407724461 is a wasteful number, since it uses less digits than its factorization.

407724461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796370.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 407724461 is about 20192.1881181808. The cubic root of 407724461 is about 741.5189526863.

The spelling of 407724461 in words is "four hundred seven million, seven hundred twenty-four thousand, four hundred sixty-one".