690076279349 has 4 divisors (see below), whose sum is σ = 693888855660. Its totient is φ = 686263703040.

The previous prime is 690076279331. The next prime is 690076279369. The reversal of 690076279349 is 943972670096.

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 291654002500 + 398422276849 = 540050^2 + 631207^2 .

It is a cyclic number.

It is not a de Polignac number, because 690076279349 - 2³² = 685781312053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 690076279291 and 690076279300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690076279369) 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, 1906287884 + ... + 1906288245.

It is an arithmetic number, because the mean of its divisors is an integer number (173472213915).

Almost surely, 2^690076279349 is an apocalyptic number.

It is an amenable number.

690076279349 is a deficient number, since it is larger than the sum of its proper divisors (3812576311).

690076279349 is a wasteful number, since it uses less digits than its factorization.

690076279349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3812576310.

The product of its (nonzero) digits is 30862944, while the sum is 62.

The spelling of 690076279349 in words is "six hundred ninety billion, seventy-six million, two hundred seventy-nine thousand, three hundred forty-nine".