4797021994 has 4 divisors (see below), whose sum is σ = 7195532994. Its totient is φ = 2398510996.

The previous prime is 4797021989. The next prime is 4797022001. The reversal of 4797021994 is 4991207974.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4991207974 = 2 ⋅2495603987.

It can be written as a sum of positive squares in only one way, i.e., 4374102769 + 422919225 = 66137^2 + 20565^2 .

It is a super-2 number, since 2×4797021994² = 46022840021839472072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1199255497 + ... + 1199255500.

Almost surely, 2^4797021994 is an apocalyptic number.

4797021994 is a deficient number, since it is larger than the sum of its proper divisors (2398511000).

4797021994 is a wasteful number, since it uses less digits than its factorization.

4797021994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398510999.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 4797021994 is about 69260.5370611577. The cubic root of 4797021994 is about 1686.5164046089.

The spelling of 4797021994 in words is "four billion, seven hundred ninety-seven million, twenty-one thousand, nine hundred ninety-four".