690267838 has 8 divisors (see below), whose sum is σ = 1115048088. Its totient is φ = 318585144.

The previous prime is 690267797. The next prime is 690267857. The reversal of 690267838 is 838762096.

690267838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 690267791 and 690267800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13274356 + ... + 13274407.

It is an arithmetic number, because the mean of its divisors is an integer number (139381011).

Almost surely, 2^690267838 is an apocalyptic number.

690267838 is a deficient number, since it is larger than the sum of its proper divisors (424780250).

690267838 is a wasteful number, since it uses less digits than its factorization.

690267838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26548778.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 690267838 is about 26272.9487876789. The cubic root of 690267838 is about 883.7699139454.

The spelling of 690267838 in words is "six hundred ninety million, two hundred sixty-seven thousand, eight hundred thirty-eight".