1040897477 has 2 divisors, whose sum is σ = 1040897478. Its totient is φ = 1040897476.

The previous prime is 1040897467. The next prime is 1040897479. The reversal of 1040897477 is 7747980401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 711075556 + 329821921 = 26666^2 + 18161^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040897477 - 2¹⁰ = 1040896453 is a prime.

It is a super-3 number, since 3×1040897477³ (a number of 28 digits) contains 333 as substring.

Together with 1040897479, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040897479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520448738 + 520448739.

It is an arithmetic number, because the mean of its divisors is an integer number (520448739).

Almost surely, 2^1040897477 is an apocalyptic number.

It is an amenable number.

1040897477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040897477 is an equidigital number, since it uses as much as digits as its factorization.

1040897477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 395136, while the sum is 47.

The square root of 1040897477 is about 32262.9427827035. The cubic root of 1040897477 is about 1013.4507582524.

The spelling of 1040897477 in words is "one billion, forty million, eight hundred ninety-seven thousand, four hundred seventy-seven".