83258981 has 8 divisors (see below), whose sum is σ = 89854464. Its totient is φ = 76690800.

The previous prime is 83258977. The next prime is 83258983. The reversal of 83258981 is 18985238.

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

It is a cyclic number.

It is not a de Polignac number, because 83258981 - 2² = 83258977 is a prime.

It is a super-2 number, since 2×83258981² = 13864115834316722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83258983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245 + ... + 12906.

It is an arithmetic number, because the mean of its divisors is an integer number (11231808).

Almost surely, 2^83258981 is an apocalyptic number.

It is an amenable number.

83258981 is a deficient number, since it is larger than the sum of its proper divisors (6595483).

83258981 is a wasteful number, since it uses less digits than its factorization.

83258981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13651.

The product of its digits is 138240, while the sum is 44.

The square root of 83258981 is about 9124.6359379429. The cubic root of 83258981 is about 436.6602882221.

The spelling of 83258981 in words is "eighty-three million, two hundred fifty-eight thousand, nine hundred eighty-one".