1398027937 has 2 divisors, whose sum is σ = 1398027938. Its totient is φ = 1398027936.

The previous prime is 1398027899. The next prime is 1398027941. The reversal of 1398027937 is 7397208931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 777071376 + 620956561 = 27876^2 + 24919^2 .

It is a cyclic number.

It is not a de Polignac number, because 1398027937 - 2¹⁵ = 1397995169 is a prime.

It is a super-2 number, since 2×1398027937² = 3908964225264951938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1398027947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699013968 + 699013969.

It is an arithmetic number, because the mean of its divisors is an integer number (699013969).

Almost surely, 2^1398027937 is an apocalyptic number.

It is an amenable number.

1398027937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1398027937 is an equidigital number, since it uses as much as digits as its factorization.

1398027937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 1398027937 is about 37390.2117806252. The cubic root of 1398027937 is about 1118.1634273805.

The spelling of 1398027937 in words is "one billion, three hundred ninety-eight million, twenty-seven thousand, nine hundred thirty-seven".