70985400 has 96 divisors (see below), whose sum is σ = 221555760. Its totient is φ = 18800640.

The previous prime is 70985399. The next prime is 70985407. The reversal of 70985400 is 458907.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70985407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115494 + ... + 116106.

Almost surely, 2^70985400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70985400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110777880).

70985400 is an abundant number, since it is smaller than the sum of its proper divisors (150570360).

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

70985400 is a wasteful number, since it uses less digits than its factorization.

70985400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 70985400 is about 8425.2833780236. The cubic root of 70985400 is about 414.0533899265.

The spelling of 70985400 in words is "seventy million, nine hundred eighty-five thousand, four hundred".