921316 has 12 divisors (see below), whose sum is σ = 1758960. Its totient is φ = 418760.

The previous prime is 921293. The next prime is 921331. The reversal of 921316 is 613129.

921316 = T₁₃₃ + T₁₃₄ + ... + T₁₉₈.

921316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 10426 + ... + 10513.

It is an arithmetic number, because the mean of its divisors is an integer number (146580).

2⁹²¹³¹⁶ is an apocalyptic number.

It is an amenable number.

921316 is a deficient number, since it is larger than the sum of its proper divisors (837644).

921316 is a wasteful number, since it uses less digits than its factorization.

921316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20954 (or 20952 counting only the distinct ones).

The product of its digits is 324, while the sum is 22.

The square root of 921316 is about 959.8520719361. The cubic root of 921316 is about 97.3052346906.

It can be divided in two parts, 9213 and 16, that added together give a palindrome (9229).

The spelling of 921316 in words is "nine hundred twenty-one thousand, three hundred sixteen".