1406377317 has 4 divisors (see below), whose sum is σ = 1875169760. Its totient is φ = 937584876.

The previous prime is 1406377303. The next prime is 1406377319. The reversal of 1406377317 is 7137736041.

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 1406377317 - 2⁶ = 1406377253 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 (1406377319) 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, 234396217 + ... + 234396222.

It is an arithmetic number, because the mean of its divisors is an integer number (468792440).

Almost surely, 2^1406377317 is an apocalyptic number.

It is an amenable number.

1406377317 is a deficient number, since it is larger than the sum of its proper divisors (468792443).

1406377317 is an equidigital number, since it uses as much as digits as its factorization.

1406377317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468792442.

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 1406377317 is about 37501.6975215789. The cubic root of 1406377317 is about 1120.3849965232.

The spelling of 1406377317 in words is "one billion, four hundred six million, three hundred seventy-seven thousand, three hundred seventeen".