61598903 has 2 divisors, whose sum is σ = 61598904. Its totient is φ = 61598902.

The previous prime is 61598897. The next prime is 61598981. The reversal of 61598903 is 30989516.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61598903 - 2⁶ = 61598839 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61598993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30799451 + 30799452.

It is an arithmetic number, because the mean of its divisors is an integer number (30799452).

Almost surely, 2^61598903 is an apocalyptic number.

61598903 is a deficient number, since it is larger than the sum of its proper divisors (1).

61598903 is an equidigital number, since it uses as much as digits as its factorization.

61598903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 61598903 is about 7848.4968624572. The cubic root of 61598903 is about 394.9338200294.

The spelling of 61598903 in words is "sixty-one million, five hundred ninety-eight thousand, nine hundred three".