1613487998 has 4 divisors (see below), whose sum is σ = 2420232000. Its totient is φ = 806743998.

The previous prime is 1613487983. The next prime is 1613488013. The reversal of 1613487998 is 8997843161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8997843161 = 2089 ⋅4307249.

It is an interprime number because it is at equal distance from previous prime (1613487983) and next prime (1613488013).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403371998 + ... + 403372001.

It is an arithmetic number, because the mean of its divisors is an integer number (605058000).

Almost surely, 2^1613487998 is an apocalyptic number.

1613487998 is a deficient number, since it is larger than the sum of its proper divisors (806744002).

1613487998 is an equidigital number, since it uses as much as digits as its factorization.

1613487998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806744001.

The product of its digits is 2612736, while the sum is 56.

The square root of 1613487998 is about 40168.2461404528. The cubic root of 1613487998 is about 1172.8844984143.

The spelling of 1613487998 in words is "one billion, six hundred thirteen million, four hundred eighty-seven thousand, nine hundred ninety-eight".