690347435 has 4 divisors (see below), whose sum is σ = 828416928. Its totient is φ = 552277944.

The previous prime is 690347429. The next prime is 690347459. The reversal of 690347435 is 534743096.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 690347435 - 2¹⁰ = 690346411 is a prime.

It is a super-2 number, since 2×690347435² = 953159162022158450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 690347392 and 690347401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69034739 + ... + 69034748.

It is an arithmetic number, because the mean of its divisors is an integer number (207104232).

Almost surely, 2^690347435 is an apocalyptic number.

690347435 is a deficient number, since it is larger than the sum of its proper divisors (138069493).

690347435 is a wasteful number, since it uses less digits than its factorization.

690347435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138069492.

The product of its (nonzero) digits is 272160, while the sum is 41.

The square root of 690347435 is about 26274.4635530395. The cubic root of 690347435 is about 883.8038827549.

The spelling of 690347435 in words is "six hundred ninety million, three hundred forty-seven thousand, four hundred thirty-five".