398754701 has 2 divisors, whose sum is σ = 398754702. Its totient is φ = 398754700.

The previous prime is 398754649. The next prime is 398754709. The reversal of 398754701 is 107457893.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 397962601 + 792100 = 19949^2 + 890^2 .

It is an emirp because it is prime and its reverse (107457893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 398754701 - 2¹⁴ = 398738317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398754709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199377350 + 199377351.

It is an arithmetic number, because the mean of its divisors is an integer number (199377351).

Almost surely, 2^398754701 is an apocalyptic number.

It is an amenable number.

398754701 is a deficient number, since it is larger than the sum of its proper divisors (1).

398754701 is an equidigital number, since it uses as much as digits as its factorization.

398754701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 398754701 is about 19968.8432564333. The cubic root of 398754701 is about 736.0408847454.

The spelling of 398754701 in words is "three hundred ninety-eight million, seven hundred fifty-four thousand, seven hundred one".