690714959 has 4 divisors (see below), whose sum is σ = 753507240. Its totient is φ = 627922680.

The previous prime is 690714931. The next prime is 690714967. The reversal of 690714959 is 959417096.

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

It is not a de Polignac number, because 690714959 - 2¹² = 690710863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690714559) by changing a digit.

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, 31396124 + ... + 31396145.

It is an arithmetic number, because the mean of its divisors is an integer number (188376810).

Almost surely, 2^690714959 is an apocalyptic number.

690714959 is a deficient number, since it is larger than the sum of its proper divisors (62792281).

690714959 is a wasteful number, since it uses less digits than its factorization.

690714959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62792280.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 690714959 is about 26281.4565616139. The cubic root of 690714959 is about 883.9606934162.

The spelling of 690714959 in words is "six hundred ninety million, seven hundred fourteen thousand, nine hundred fifty-nine".