70398 has 12 divisors (see below), whose sum is σ = 152568. Its totient is φ = 23460.

The previous prime is 70393. The next prime is 70423. The reversal of 70398 is 89307.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1938 + ... + 1973.

It is an arithmetic number, because the mean of its divisors is an integer number (12714).

2⁷⁰³⁹⁸ is an apocalyptic number.

70398 is an abundant number, since it is smaller than the sum of its proper divisors (82170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70398 is a wasteful number, since it uses less digits than its factorization.

70398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919 (or 3916 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 70398 is about 265.3262143099. The cubic root of 70398 is about 41.2908135994.

Subtracting from 70398 its product of nonzero digits (1512), we obtain a palindrome (68886).

The spelling of 70398 in words is "seventy thousand, three hundred ninety-eight".