84634907 has 16 divisors (see below), whose sum is σ = 99225600. Its totient is φ = 72158184.

The previous prime is 84634897. The next prime is 84634933. The reversal of 84634907 is 70943648.

It is not a de Polignac number, because 84634907 - 2¹⁰ = 84633883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84634307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77318 + ... + 78404.

It is an arithmetic number, because the mean of its divisors is an integer number (6201600).

Almost surely, 2^84634907 is an apocalyptic number.

84634907 is a deficient number, since it is larger than the sum of its proper divisors (14590693).

84634907 is a wasteful number, since it uses less digits than its factorization.

84634907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335 (or 1321 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 84634907 is about 9199.7232023578. The cubic root of 84634907 is about 439.0525532808.

It can be divided in two parts, 8463 and 4907, that multiplied together give a triangular number (41527941 = T₉₁₁₃).

The spelling of 84634907 in words is "eighty-four million, six hundred thirty-four thousand, nine hundred seven".