83249897 has 4 divisors (see below), whose sum is σ = 83905536. Its totient is φ = 82594260.

The previous prime is 83249893. The next prime is 83249917. The reversal of 83249897 is 79894238.

It is a happy number.

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: 79894238 = 2 ⋅39947119.

It is a cyclic number.

It is not a de Polignac number, because 83249897 - 2² = 83249893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83249891) 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, 327629 + ... + 327882.

It is an arithmetic number, because the mean of its divisors is an integer number (20976384).

Almost surely, 2^83249897 is an apocalyptic number.

It is an amenable number.

83249897 is a deficient number, since it is larger than the sum of its proper divisors (655639).

83249897 is a wasteful number, since it uses less digits than its factorization.

83249897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655638.

The product of its digits is 870912, while the sum is 50.

The square root of 83249897 is about 9124.1381510804. The cubic root of 83249897 is about 436.6444069871.

The spelling of 83249897 in words is "eighty-three million, two hundred forty-nine thousand, eight hundred ninety-seven".