690112023 has 4 divisors (see below), whose sum is σ = 920149368. Its totient is φ = 460074680.

The previous prime is 690112021. The next prime is 690112039. The reversal of 690112023 is 320211096.

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 690112023 - 2¹ = 690112021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 690111984 and 690112002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690112021) 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, 115018668 + ... + 115018673.

It is an arithmetic number, because the mean of its divisors is an integer number (230037342).

Almost surely, 2^690112023 is an apocalyptic number.

690112023 is a deficient number, since it is larger than the sum of its proper divisors (230037345).

690112023 is a wasteful number, since it uses less digits than its factorization.

690112023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230037344.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 690112023 is about 26269.9833079505. The cubic root of 690112023 is about 883.7034107881.

The spelling of 690112023 in words is "six hundred ninety million, one hundred twelve thousand, twenty-three".