1040897699 has 2 divisors, whose sum is σ = 1040897700. Its totient is φ = 1040897698.

The previous prime is 1040897657. The next prime is 1040897707. The reversal of 1040897699 is 9967980401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1040897699 - 2²⁰ = 1039849123 is a prime.

It is a super-3 number, since 3×1040897699³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1040897699.

It is not a weakly prime, because it can be changed into another prime (1040897399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520448849 + 520448850.

It is an arithmetic number, because the mean of its divisors is an integer number (520448850).

Almost surely, 2^1040897699 is an apocalyptic number.

1040897699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040897699 is an equidigital number, since it uses as much as digits as its factorization.

1040897699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 1040897699 is about 32262.9462231830. The cubic root of 1040897699 is about 1013.4508303011.

The spelling of 1040897699 in words is "one billion, forty million, eight hundred ninety-seven thousand, six hundred ninety-nine".