1698961492 has 12 divisors (see below), whose sum is σ = 2981030080. Its totient is φ = 847238616.

The previous prime is 1698961489. The next prime is 1698961507. The reversal of 1698961492 is 2941698961.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558828 + ... + 561859.

Almost surely, 2^1698961492 is an apocalyptic number.

It is an amenable number.

1698961492 is a deficient number, since it is larger than the sum of its proper divisors (1282068588).

1698961492 is a wasteful number, since it uses less digits than its factorization.

1698961492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121070 (or 1121068 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 55.

The square root of 1698961492 is about 41218.4605729035. The cubic root of 1698961492 is about 1193.2401146107.

The spelling of 1698961492 in words is "one billion, six hundred ninety-eight million, nine hundred sixty-one thousand, four hundred ninety-two".