616957403 has 2 divisors, whose sum is σ = 616957404. Its totient is φ = 616957402.

The previous prime is 616957333. The next prime is 616957423. The reversal of 616957403 is 304759616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 616957403 - 2⁸ = 616957147 is a prime.

It is not a weakly prime, because it can be changed into another prime (616957423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308478701 + 308478702.

It is an arithmetic number, because the mean of its divisors is an integer number (308478702).

Almost surely, 2^616957403 is an apocalyptic number.

616957403 is a deficient number, since it is larger than the sum of its proper divisors (1).

616957403 is an equidigital number, since it uses as much as digits as its factorization.

616957403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 616957403 is about 24838.6272366248. The cubic root of 616957403 is about 851.3047564870.

The spelling of 616957403 in words is "six hundred sixteen million, nine hundred fifty-seven thousand, four hundred three".