988653403 has 2 divisors, whose sum is σ = 988653404. Its totient is φ = 988653402.

The previous prime is 988653397. The next prime is 988653427. The reversal of 988653403 is 304356889.

It is a weak prime.

It is an emirp because it is prime and its reverse (304356889) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 988653403 - 2²⁵ = 955098971 is a prime.

It is not a weakly prime, because it can be changed into another prime (988653433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494326701 + 494326702.

It is an arithmetic number, because the mean of its divisors is an integer number (494326702).

Almost surely, 2^988653403 is an apocalyptic number.

988653403 is a deficient number, since it is larger than the sum of its proper divisors (1).

988653403 is an equidigital number, since it uses as much as digits as its factorization.

988653403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 988653403 is about 31442.8593324462. The cubic root of 988653403 is about 996.2034051088.

The spelling of 988653403 in words is "nine hundred eighty-eight million, six hundred fifty-three thousand, four hundred three".