8629491 has 16 divisors (see below), whose sum is σ = 12444320. Its totient is φ = 5287680.

The previous prime is 8629483. The next prime is 8629507. The reversal of 8629491 is 1949268.

8629491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8629491 - 2³ = 8629483 is a prime.

It is a super-2 number, since 2×8629491² = 148936229838162, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8629441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15681 + ... + 16221.

It is an arithmetic number, because the mean of its divisors is an integer number (777770).

Almost surely, 2^8629491 is an apocalyptic number.

8629491 is a deficient number, since it is larger than the sum of its proper divisors (3814829).

8629491 is a wasteful number, since it uses less digits than its factorization.

8629491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966.

The product of its digits is 31104, while the sum is 39.

The square root of 8629491 is about 2937.5995302287. The cubic root of 8629491 is about 205.1138847681.

The spelling of 8629491 in words is "eight million, six hundred twenty-nine thousand, four hundred ninety-one".