854987870 has 16 divisors (see below), whose sum is σ = 1678885488. Its totient is φ = 310904640.

The previous prime is 854987867. The next prime is 854987879. The reversal of 854987870 is 78789458.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854987879) 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, 3886199 + ... + 3886418.

It is an arithmetic number, because the mean of its divisors is an integer number (104930343).

Almost surely, 2^854987870 is an apocalyptic number.

854987870 is a deficient number, since it is larger than the sum of its proper divisors (823897618).

854987870 is a wasteful number, since it uses less digits than its factorization.

854987870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7772635.

The product of its (nonzero) digits is 4515840, while the sum is 56.

The square root of 854987870 is about 29240.1756150677. The cubic root of 854987870 is about 949.1175073412.

The spelling of 854987870 in words is "eight hundred fifty-four million, nine hundred eighty-seven thousand, eight hundred seventy".