84769740 has 240 divisors, whose sum is σ = 298577664. Its totient is φ = 19958400.

The previous prime is 84769733. The next prime is 84769759. The reversal of 84769740 is 4796748.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1193905 + ... + 1193975.

Almost surely, 2^84769740 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 84769740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149288832).

84769740 is an abundant number, since it is smaller than the sum of its proper divisors (213807924).

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

84769740 is a wasteful number, since it uses less digits than its factorization.

84769740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 84769740 is about 9207.0483869696. The cubic root of 84769740 is about 439.2855830713.

The spelling of 84769740 in words is "eighty-four million, seven hundred sixty-nine thousand, seven hundred forty".