34561998 has 32 divisors (see below), whose sum is σ = 77577120. Its totient is φ = 11404800.

The previous prime is 34561991. The next prime is 34561999. The reversal of 34561998 is 89916543.

It is a happy number.

34561998 is a `hidden beast` number, since 3 + 456 + 199 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34561991) 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, 2286 + ... + 8622.

It is an arithmetic number, because the mean of its divisors is an integer number (2424285).

Almost surely, 2^34561998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34561998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38788560).

34561998 is an abundant number, since it is smaller than the sum of its proper divisors (43015122).

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

34561998 is a wasteful number, since it uses less digits than its factorization.

34561998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6449 (or 6443 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 34561998 is about 5878.9453135745. The cubic root of 34561998 is about 325.7363909612.

The spelling of 34561998 in words is "thirty-four million, five hundred sixty-one thousand, nine hundred ninety-eight".