398783662 has 16 divisors (see below), whose sum is σ = 603072000. Its totient is φ = 197766360.

The previous prime is 398783639. The next prime is 398783663. The reversal of 398783662 is 266387893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398783663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141487 + ... + 144277.

It is an arithmetic number, because the mean of its divisors is an integer number (37692000).

Almost surely, 2^398783662 is an apocalyptic number.

398783662 is a deficient number, since it is larger than the sum of its proper divisors (204288338).

398783662 is a wasteful number, since it uses less digits than its factorization.

398783662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351.

The product of its digits is 2612736, while the sum is 52.

The square root of 398783662 is about 19969.5683979399. The cubic root of 398783662 is about 736.0587035230.

The spelling of 398783662 in words is "three hundred ninety-eight million, seven hundred eighty-three thousand, six hundred sixty-two".