698966542 has 8 divisors (see below), whose sum is σ = 1048924800. Its totient is φ = 349324944.

The previous prime is 698966531. The next prime is 698966557. The reversal of 698966542 is 245669896.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73567 + ... + 82522.

It is an arithmetic number, because the mean of its divisors is an integer number (131115600).

Almost surely, 2^698966542 is an apocalyptic number.

698966542 is a deficient number, since it is larger than the sum of its proper divisors (349958258).

698966542 is a wasteful number, since it uses less digits than its factorization.

698966542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158330.

The product of its digits is 5598720, while the sum is 55.

The square root of 698966542 is about 26437.9753763408. The cubic root of 698966542 is about 887.4668286749.

The spelling of 698966542 in words is "six hundred ninety-eight million, nine hundred sixty-six thousand, five hundred forty-two".