398384763 has 16 divisors (see below), whose sum is σ = 615614976. Its totient is φ = 224441280.

The previous prime is 398384743. The next prime is 398384797. The reversal of 398384763 is 367483893.

It is not a de Polignac number, because 398384763 - 2⁶ = 398384699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (398384743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132106 + ... + 135087.

It is an arithmetic number, because the mean of its divisors is an integer number (38475936).

Almost surely, 2^398384763 is an apocalyptic number.

398384763 is a deficient number, since it is larger than the sum of its proper divisors (217230213).

398384763 is a wasteful number, since it uses less digits than its factorization.

398384763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267274.

The product of its digits is 2612736, while the sum is 51.

The square root of 398384763 is about 19959.5782270067. The cubic root of 398384763 is about 735.8131977826.

The spelling of 398384763 in words is "three hundred ninety-eight million, three hundred eighty-four thousand, seven hundred sixty-three".