398878097435 has 8 divisors (see below), whose sum is σ = 479297939040. Its totient is φ = 318672996544.

The previous prime is 398878097419. The next prime is 398878097441. The reversal of 398878097435 is 534790878893.

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

It is a cyclic number.

It is not a de Polignac number, because 398878097435 - 2⁴ = 398878097419 is a prime.

It is a super-2 number, since 2×398878097435² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53681090 + ... + 53688519.

It is an arithmetic number, because the mean of its divisors is an integer number (59912242380).

Almost surely, 2^398878097435 is an apocalyptic number.

398878097435 is a deficient number, since it is larger than the sum of its proper divisors (80419841605).

398878097435 is a wasteful number, since it uses less digits than its factorization.

398878097435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107370357.

The product of its (nonzero) digits is 365783040, while the sum is 71.

The spelling of 398878097435 in words is "three hundred ninety-eight billion, eight hundred seventy-eight million, ninety-seven thousand, four hundred thirty-five".