83291951 has 8 divisors (see below), whose sum is σ = 85470000. Its totient is φ = 81120960.

The previous prime is 83291939. The next prime is 83291963. The reversal of 83291951 is 15919238.

It is an interprime number because it is at equal distance from previous prime (83291939) and next prime (83291963).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-83291951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83291051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28925 + ... + 31673.

It is an arithmetic number, because the mean of its divisors is an integer number (10683750).

Almost surely, 2^83291951 is an apocalyptic number.

83291951 is a deficient number, since it is larger than the sum of its proper divisors (2178049).

83291951 is a wasteful number, since it uses less digits than its factorization.

83291951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3529.

The product of its digits is 19440, while the sum is 38.

The square root of 83291951 is about 9126.4424065459. The cubic root of 83291951 is about 436.7179188008.

The spelling of 83291951 in words is "eighty-three million, two hundred ninety-one thousand, nine hundred fifty-one".