1038423697 has 2 divisors, whose sum is σ = 1038423698. Its totient is φ = 1038423696.

The previous prime is 1038423671. The next prime is 1038423719. The reversal of 1038423697 is 7963248301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 972878481 + 65545216 = 31191^2 + 8096^2 .

It is a cyclic number.

It is not a de Polignac number, because 1038423697 - 2¹⁵ = 1038390929 is a prime.

It is a super-2 number, since 2×1038423697² = 2156647548982295618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1038423667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519211848 + 519211849.

It is an arithmetic number, because the mean of its divisors is an integer number (519211849).

Almost surely, 2^1038423697 is an apocalyptic number.

It is an amenable number.

1038423697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038423697 is an equidigital number, since it uses as much as digits as its factorization.

1038423697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 1038423697 is about 32224.5821850338. The cubic root of 1038423697 is about 1012.6472712061.

The spelling of 1038423697 in words is "one billion, thirty-eight million, four hundred twenty-three thousand, six hundred ninety-seven".