83869429 has 6 divisors (see below), whose sum is σ = 97562454. Its totient is φ = 71888040.

The previous prime is 83869411. The next prime is 83869441. The reversal of 83869429 is 92496838.

It can be written as a sum of positive squares in only one way, i.e., 82174225 + 1695204 = 9065^2 + 1302^2 .

It is not a de Polignac number, because 83869429 - 2⁵ = 83869397 is a prime.

It is a super-2 number, since 2×83869429² = 14068162241572082, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 1711621 = 83869429 / (8 + 3 + 8 + 6 + 9 + 4 + 2 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83869459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 855762 + ... + 855859.

It is an arithmetic number, because the mean of its divisors is an integer number (16260409).

Almost surely, 2^83869429 is an apocalyptic number.

It is an amenable number.

83869429 is a deficient number, since it is larger than the sum of its proper divisors (13693025).

83869429 is a wasteful number, since it uses less digits than its factorization.

83869429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711635 (or 1711628 counting only the distinct ones).

The product of its digits is 746496, while the sum is 49.

The square root of 83869429 is about 9158.0253876040. The cubic root of 83869429 is about 437.7248763930.

The spelling of 83869429 in words is "eighty-three million, eight hundred sixty-nine thousand, four hundred twenty-nine".