2021764034 has 4 divisors (see below), whose sum is σ = 3032646054. Its totient is φ = 1010882016.

The previous prime is 2021763959. The next prime is 2021764051. The reversal of 2021764034 is 4304671202.

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

It can be written as a sum of positive squares in only one way, i.e., 1152398809 + 869365225 = 33947^2 + 29485^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2021763988 and 2021764006.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505441007 + ... + 505441010.

Almost surely, 2^2021764034 is an apocalyptic number.

2021764034 is a deficient number, since it is larger than the sum of its proper divisors (1010882020).

2021764034 is a wasteful number, since it uses less digits than its factorization.

2021764034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010882019.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 2021764034 is about 44964.0304465692. The cubic root of 2021764034 is about 1264.4747326329.

The spelling of 2021764034 in words is "two billion, twenty-one million, seven hundred sixty-four thousand, thirty-four".