85761949 has 8 divisors (see below), whose sum is σ = 105553280. Its totient is φ = 67855536.

The previous prime is 85761911. The next prime is 85761971. The reversal of 85761949 is 94916758.

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

It is not a de Polignac number, because 85761949 - 2⁹ = 85761437 is a prime.

It is a super-2 number, since 2×85761949² = 14710223792557202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85761989) 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, 471129 + ... + 471310.

It is an arithmetic number, because the mean of its divisors is an integer number (13194160).

Almost surely, 2^85761949 is an apocalyptic number.

It is an amenable number.

85761949 is a deficient number, since it is larger than the sum of its proper divisors (19791331).

85761949 is a wasteful number, since it uses less digits than its factorization.

85761949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942459.

The product of its digits is 544320, while the sum is 49.

The square root of 85761949 is about 9260.7747516069. The cubic root of 85761949 is about 440.9928492284.

The spelling of 85761949 in words is "eighty-five million, seven hundred sixty-one thousand, nine hundred forty-nine".