4890919697 has 4 divisors (see below), whose sum is σ = 4899960756. Its totient is φ = 4881878640.

The previous prime is 4890919681. The next prime is 4890919721. The reversal of 4890919697 is 7969190984.

It is a happy number.

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 738534976 + 4152384721 = 27176^2 + 64439^2 .

It is a cyclic number.

It is not a de Polignac number, because 4890919697 - 2⁴ = 4890919681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4890919097) 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, 4519718 + ... + 4520799.

It is an arithmetic number, because the mean of its divisors is an integer number (1224990189).

Almost surely, 2^4890919697 is an apocalyptic number.

It is an amenable number.

4890919697 is a deficient number, since it is larger than the sum of its proper divisors (9041059).

4890919697 is an equidigital number, since it uses as much as digits as its factorization.

4890919697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9041058.

The product of its (nonzero) digits is 8817984, while the sum is 62.

The square root of 4890919697 is about 69935.1106169140. The cubic root of 4890919697 is about 1697.4494274451.

The spelling of 4890919697 in words is "four billion, eight hundred ninety million, nine hundred nineteen thousand, six hundred ninety-seven".