83001409 has 4 divisors (see below), whose sum is σ = 84240304. Its totient is φ = 81762516.

The previous prime is 83001407. The next prime is 83001427. The reversal of 83001409 is 90410038.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90410038 = 2 ⋅45205019.

It is a cyclic number.

It is not a de Polignac number, because 83001409 - 2¹ = 83001407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83001403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619347 + ... + 619480.

It is an arithmetic number, because the mean of its divisors is an integer number (21060076).

Almost surely, 2^83001409 is an apocalyptic number.

It is an amenable number.

83001409 is a deficient number, since it is larger than the sum of its proper divisors (1238895).

83001409 is a wasteful number, since it uses less digits than its factorization.

83001409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238894.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 83001409 is about 9110.5109077373. The cubic root of 83001409 is about 436.2095354679.

The spelling of 83001409 in words is "eighty-three million, one thousand, four hundred nine".