32420851 has 4 divisors (see below), whose sum is σ = 32718400. Its totient is φ = 32123304.

The previous prime is 32420837. The next prime is 32420867. The reversal of 32420851 is 15802423.

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

It is a cyclic number.

It is not a de Polignac number, because 32420851 - 2¹¹ = 32418803 is a prime.

It is a super-2 number, since 2×32420851² = 2102223159128402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32420891) 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, 148611 + ... + 148828.

It is an arithmetic number, because the mean of its divisors is an integer number (8179600).

Almost surely, 2^32420851 is an apocalyptic number.

32420851 is a deficient number, since it is larger than the sum of its proper divisors (297549).

32420851 is a wasteful number, since it uses less digits than its factorization.

32420851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297548.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 32420851 is about 5693.9310673734. The cubic root of 32420851 is about 318.8659434164.

The spelling of 32420851 in words is "thirty-two million, four hundred twenty thousand, eight hundred fifty-one".