34891398 has 36 divisors (see below), whose sum is σ = 78531180. Its totient is φ = 11626092.

The previous prime is 34891393. The next prime is 34891427. The reversal of 34891398 is 89319843.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34891393) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11793 + ... + 14451.

Almost surely, 2^34891398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34891398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39265590).

34891398 is an abundant number, since it is smaller than the sum of its proper divisors (43639782).

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

34891398 is an frugal number, since it uses more digits than its factorization.

34891398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685 (or 2664 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 34891398 is about 5906.8941077355. The cubic root of 34891398 is about 326.7679525341.

The spelling of 34891398 in words is "thirty-four million, eight hundred ninety-one thousand, three hundred ninety-eight".