35638398 has 12 divisors (see below), whose sum is σ = 77216568. Its totient is φ = 11879460.

The previous prime is 35638333. The next prime is 35638399. The reversal of 35638398 is 89383653.

35638398 is a `hidden beast` number, since 3 + 5 + 638 + 3 + 9 + 8 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35638399) 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, 989938 + ... + 989973.

It is an arithmetic number, because the mean of its divisors is an integer number (6434714).

Almost surely, 2^35638398 is an apocalyptic number.

35638398 is an abundant number, since it is smaller than the sum of its proper divisors (41578170).

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

35638398 is a wasteful number, since it uses less digits than its factorization.

35638398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979919 (or 1979916 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 35638398 is about 5969.7904485836. The cubic root of 35638398 is about 329.0834622864.

The spelling of 35638398 in words is "thirty-five million, six hundred thirty-eight thousand, three hundred ninety-eight".