400900763 has 2 divisors, whose sum is σ = 400900764. Its totient is φ = 400900762.

The previous prime is 400900757. The next prime is 400900781. The reversal of 400900763 is 367009004.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400900763 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (400900793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200450381 + 200450382.

It is an arithmetic number, because the mean of its divisors is an integer number (200450382).

Almost surely, 2^400900763 is an apocalyptic number.

400900763 is a deficient number, since it is larger than the sum of its proper divisors (1).

400900763 is an equidigital number, since it uses as much as digits as its factorization.

400900763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 400900763 is about 20022.5064115360. The cubic root of 400900763 is about 737.3589583009.

Adding to 400900763 its reverse (367009004), we get a palindrome (767909767).

The spelling of 400900763 in words is "four hundred million, nine hundred thousand, seven hundred sixty-three".