1407398873 has 4 divisors (see below), whose sum is σ = 1490187060. Its totient is φ = 1324610688.

The previous prime is 1407398833. The next prime is 1407398939. The reversal of 1407398873 is 3788937041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3788937041 = 19 ⋅199417739.

It can be written as a sum of positive squares in 2 ways, for example, as 1238476864 + 168922009 = 35192^2 + 12997^2 .

It is a cyclic number.

It is not a de Polignac number, because 1407398873 - 2⁶ = 1407398809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1407398813) 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, 41394068 + ... + 41394101.

It is an arithmetic number, because the mean of its divisors is an integer number (372546765).

Almost surely, 2^1407398873 is an apocalyptic number.

It is an amenable number.

1407398873 is a deficient number, since it is larger than the sum of its proper divisors (82788187).

1407398873 is an equidigital number, since it uses as much as digits as its factorization.

1407398873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82788186.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The square root of 1407398873 is about 37515.3151792705. The cubic root of 1407398873 is about 1120.6562037336.

The spelling of 1407398873 in words is "one billion, four hundred seven million, three hundred ninety-eight thousand, eight hundred seventy-three".