35642389 has 4 divisors (see below), whose sum is σ = 35667756. Its totient is φ = 35617024.

The previous prime is 35642371. The next prime is 35642413. The reversal of 35642389 is 98324653.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17724100 + 17918289 = 4210^2 + 4233^2 .

It is a 4-Lehmer number, since φ(35642389) divides (35642389-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 35642389 - 2⁵ = 35642357 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35642329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10444 + ... + 13429.

It is an arithmetic number, because the mean of its divisors is an integer number (8916939).

Almost surely, 2^35642389 is an apocalyptic number.

It is an amenable number.

35642389 is a deficient number, since it is larger than the sum of its proper divisors (25367).

35642389 is a wasteful number, since it uses less digits than its factorization.

35642389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25366.

The product of its digits is 155520, while the sum is 40.

The square root of 35642389 is about 5970.1247055652. The cubic root of 35642389 is about 329.0957460697.

The spelling of 35642389 in words is "thirty-five million, six hundred forty-two thousand, three hundred eighty-nine".