8997429 has 24 divisors (see below), whose sum is σ = 14121408. Its totient is φ = 5080320.

The previous prime is 8997427. The next prime is 8997451. The reversal of 8997429 is 9247998.

It is a happy number.

It is not a de Polignac number, because 8997429 - 2¹ = 8997427 is a prime.

It is a super-2 number, since 2×8997429² = 161907457220082, which contains 22 as substring.

8997429 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8997421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13944 + ... + 14574.

It is an arithmetic number, because the mean of its divisors is an integer number (588392).

Almost surely, 2^8997429 is an apocalyptic number.

It is an amenable number.

8997429 is a deficient number, since it is larger than the sum of its proper divisors (5123979).

8997429 is a wasteful number, since it uses less digits than its factorization.

8997429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 738 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 8997429 is about 2999.5714693936. The cubic root of 8997429 is about 207.9885733984.

The spelling of 8997429 in words is "eight million, nine hundred ninety-seven thousand, four hundred twenty-nine".