869654 has 4 divisors (see below), whose sum is σ = 1304484. Its totient is φ = 434826.

The previous prime is 869599. The next prime is 869657. The reversal of 869654 is 456968.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869654.

It is not an unprimeable number, because it can be changed into a prime (869657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217412 + ... + 217415.

It is an arithmetic number, because the mean of its divisors is an integer number (326121).

2⁸⁶⁹⁶⁵⁴ is an apocalyptic number.

869654 is a deficient number, since it is larger than the sum of its proper divisors (434830).

869654 is a wasteful number, since it uses less digits than its factorization.

869654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434829.

The product of its digits is 51840, while the sum is 38.

The square root of 869654 is about 932.5524113957. The cubic root of 869654 is about 95.4513700311.

Subtracting from 869654 its reverse (456968), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 869654 in words is "eight hundred sixty-nine thousand, six hundred fifty-four".