981698492 has 6 divisors (see below), whose sum is σ = 1717972368. Its totient is φ = 490849244.

The previous prime is 981698453. The next prime is 981698503. The reversal of 981698492 is 294896189.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122712308 + ... + 122712315.

It is an arithmetic number, because the mean of its divisors is an integer number (286328728).

Almost surely, 2^981698492 is an apocalyptic number.

It is an amenable number.

981698492 is a deficient number, since it is larger than the sum of its proper divisors (736273876).

981698492 is a wasteful number, since it uses less digits than its factorization.

981698492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245424627 (or 245424625 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 56.

The square root of 981698492 is about 31332.0681092072. The cubic root of 981698492 is about 993.8618981257.

The spelling of 981698492 in words is "nine hundred eighty-one million, six hundred ninety-eight thousand, four hundred ninety-two".