85783901 has 4 divisors (see below), whose sum is σ = 98038752. Its totient is φ = 73529052.

The previous prime is 85783891. The next prime is 85783937. The reversal of 85783901 is 10938758.

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.

It is a cyclic number.

It is not a de Polignac number, because 85783901 - 2¹⁸ = 85521757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85783991) 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, 6127415 + ... + 6127428.

It is an arithmetic number, because the mean of its divisors is an integer number (24509688).

Almost surely, 2^85783901 is an apocalyptic number.

It is an amenable number.

85783901 is a deficient number, since it is larger than the sum of its proper divisors (12254851).

85783901 is a wasteful number, since it uses less digits than its factorization.

85783901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12254850.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 85783901 is about 9261.9598897857. The cubic root of 85783901 is about 441.0304721652.

The spelling of 85783901 in words is "eighty-five million, seven hundred eighty-three thousand, nine hundred one".