85961487 has 4 divisors (see below), whose sum is σ = 114615320. Its totient is φ = 57307656.

The previous prime is 85961479. The next prime is 85961489. The reversal of 85961487 is 78416958.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 85961487 - 2³ = 85961479 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 (85961489) 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, 14326912 + ... + 14326917.

It is an arithmetic number, because the mean of its divisors is an integer number (28653830).

Almost surely, 2^85961487 is an apocalyptic number.

85961487 is a deficient number, since it is larger than the sum of its proper divisors (28653833).

85961487 is a wasteful number, since it uses less digits than its factorization.

85961487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28653832.

The product of its digits is 483840, while the sum is 48.

The square root of 85961487 is about 9271.5417811710. The cubic root of 85961487 is about 441.3345962614.

The spelling of 85961487 in words is "eighty-five million, nine hundred sixty-one thousand, four hundred eighty-seven".