407800493 has 4 divisors (see below), whose sum is σ = 408376380. Its totient is φ = 407224608.

The previous prime is 407800489. The next prime is 407800517. The reversal of 407800493 is 394008704.

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

It can be written as a sum of positive squares in 2 ways, for example, as 36929929 + 370870564 = 6077^2 + 19258^2 .

It is a cyclic number.

It is not a de Polignac number, because 407800493 - 2² = 407800489 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 (407800693) 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, 286880 + ... + 288297.

It is an arithmetic number, because the mean of its divisors is an integer number (102094095).

Almost surely, 2^407800493 is an apocalyptic number.

It is an amenable number.

407800493 is a deficient number, since it is larger than the sum of its proper divisors (575887).

407800493 is an equidigital number, since it uses as much as digits as its factorization.

407800493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575886.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 407800493 is about 20194.0707387094. The cubic root of 407800493 is about 741.5650423623.

The spelling of 407800493 in words is "four hundred seven million, eight hundred thousand, four hundred ninety-three".