35628021 has 96 divisors (see below), whose sum is σ = 67092480. Its totient is φ = 17884800.

The previous prime is 35628011. The next prime is 35628023. The reversal of 35628021 is 12082653.

35628021 is a `hidden beast` number, since 3 + 562 + 80 + 21 = 666.

It is not a de Polignac number, because 35628021 - 2⁶ = 35627957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35628023) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 758020 + ... + 758066.

It is an arithmetic number, because the mean of its divisors is an integer number (698880).

Almost surely, 2^35628021 is an apocalyptic number.

35628021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

35628021 is a deficient number, since it is larger than the sum of its proper divisors (31464459).

35628021 is a wasteful number, since it uses less digits than its factorization.

35628021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 35628021 is about 5968.9212593232. The cubic root of 35628021 is about 329.0515189259.

The spelling of 35628021 in words is "thirty-five million, six hundred twenty-eight thousand, twenty-one".