1407795997 has 4 divisors (see below), whose sum is σ = 1407883356. Its totient is φ = 1407708640.

The previous prime is 1407795989. The next prime is 1407796001. The reversal of 1407795997 is 7995977041.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1170050436 + 237745561 = 34206^2 + 15419^2 .

It is a cyclic number.

It is not a de Polignac number, because 1407795997 - 2³ = 1407795989 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 (1407795397) 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, 11704 + ... + 54337.

It is an arithmetic number, because the mean of its divisors is an integer number (351970839).

Almost surely, 2^1407795997 is an apocalyptic number.

It is an amenable number.

1407795997 is a deficient number, since it is larger than the sum of its proper divisors (87359).

1407795997 is an equidigital number, since it uses as much as digits as its factorization.

1407795997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87358.

The product of its (nonzero) digits is 5000940, while the sum is 58.

The square root of 1407795997 is about 37520.6076310073. The cubic root of 1407795997 is about 1120.7615985463.

The spelling of 1407795997 in words is "one billion, four hundred seven million, seven hundred ninety-five thousand, nine hundred ninety-seven".