85021007 has 8 divisors (see below), whose sum is σ = 86661120. Its totient is φ = 83388960.

The previous prime is 85020977. The next prime is 85021033. The reversal of 85021007 is 70012058.

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 85021007 - 2⁸ = 85020751 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 (85020007) 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, 21938 + ... + 25520.

It is an arithmetic number, because the mean of its divisors is an integer number (10832640).

Almost surely, 2^85021007 is an apocalyptic number.

85021007 is a deficient number, since it is larger than the sum of its proper divisors (1640113).

85021007 is a wasteful number, since it uses less digits than its factorization.

85021007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4033.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 85021007 is about 9220.6836514436. The cubic root of 85021007 is about 439.7191854876.

The spelling of 85021007 in words is "eighty-five million, twenty-one thousand, seven".