2402761897 has 4 divisors (see below), whose sum is σ = 2402868420. Its totient is φ = 2402655376.

The previous prime is 2402761873. The next prime is 2402761927. The reversal of 2402761897 is 7981672042.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 874030096 + 1528731801 = 29564^2 + 39099^2 .

It is a cyclic number.

It is not a de Polignac number, because 2402761897 - 2³¹ = 255278249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2402761807) 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, 4618 + ... + 69475.

It is an arithmetic number, because the mean of its divisors is an integer number (600717105).

Almost surely, 2^2402761897 is an apocalyptic number.

It is an amenable number.

2402761897 is a deficient number, since it is larger than the sum of its proper divisors (106523).

2402761897 is an equidigital number, since it uses as much as digits as its factorization.

2402761897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106522.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 2402761897 is about 49017.9752437817. The cubic root of 2402761897 is about 1339.3792879631.

The spelling of 2402761897 in words is "two billion, four hundred two million, seven hundred sixty-one thousand, eight hundred ninety-seven".