662119897 has 4 divisors (see below), whose sum is σ = 663222196. Its totient is φ = 661017600.

The previous prime is 662119877. The next prime is 662119903. The reversal of 662119897 is 798911266.

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 624800016 + 37319881 = 24996^2 + 6109^2 .

It is a cyclic number.

It is not a de Polignac number, because 662119897 - 2¹⁹ = 661595609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 662119897.

It is not an unprimeable number, because it can be changed into a prime (662119807) 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, 550248 + ... + 551449.

It is an arithmetic number, because the mean of its divisors is an integer number (165805549).

Almost surely, 2^662119897 is an apocalyptic number.

It is an amenable number.

662119897 is a deficient number, since it is larger than the sum of its proper divisors (1102299).

662119897 is a wasteful number, since it uses less digits than its factorization.

662119897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102298.

The product of its digits is 326592, while the sum is 49.

The square root of 662119897 is about 25731.6905196685. The cubic root of 662119897 is about 871.5899480648.

The spelling of 662119897 in words is "six hundred sixty-two million, one hundred nineteen thousand, eight hundred ninety-seven".