85247964 has 30 divisors (see below), whose sum is σ = 222855864. Its totient is φ = 28415880.

The previous prime is 85247951. The next prime is 85247969. The reversal of 85247964 is 46974258.

It is a happy number.

It is a super-2 number, since 2×85247964² = 14534430732290592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85247969) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 131232 + ... + 131879.

Almost surely, 2^85247964 is an apocalyptic number.

It is an amenable number.

85247964 is an abundant number, since it is smaller than the sum of its proper divisors (137607900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85247964 is a wasteful number, since it uses less digits than its factorization.

85247964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263127 (or 263116 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 85247964 is about 9232.9824000699. The cubic root of 85247964 is about 440.1101033000.

The spelling of 85247964 in words is "eighty-five million, two hundred forty-seven thousand, nine hundred sixty-four".