690157011 has 8 divisors (see below), whose sum is σ = 921893824. Its totient is φ = 459262440.

The previous prime is 690156983. The next prime is 690157033. The reversal of 690157011 is 110751096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 690157011 - 2²⁵ = 656602579 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 690157011.

It is not an unprimeable number, because it can be changed into a prime (690157081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208645 + ... + 211926.

It is an arithmetic number, because the mean of its divisors is an integer number (115236728).

Almost surely, 2^690157011 is an apocalyptic number.

690157011 is a deficient number, since it is larger than the sum of its proper divisors (231736813).

690157011 is a wasteful number, since it uses less digits than its factorization.

690157011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421121.

The product of its (nonzero) digits is 1890, while the sum is 30.

The square root of 690157011 is about 26270.8395564360. The cubic root of 690157011 is about 883.7226130740.

The spelling of 690157011 in words is "six hundred ninety million, one hundred fifty-seven thousand, eleven".