84740070 has 32 divisors (see below), whose sum is σ = 215340768. Its totient is φ = 21267968.

The previous prime is 84740069. The next prime is 84740077. The reversal of 84740070 is 7004748.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84740077) 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 15 ways as a sum of consecutive naturals, for example, 82569 + ... + 83588.

It is an arithmetic number, because the mean of its divisors is an integer number (6729399).

Almost surely, 2^84740070 is an apocalyptic number.

84740070 is an abundant number, since it is smaller than the sum of its proper divisors (130600698).

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

84740070 is a wasteful number, since it uses less digits than its factorization.

84740070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166184.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 84740070 is about 9205.4369803937. The cubic root of 84740070 is about 439.2343260851.

The spelling of 84740070 in words is "eighty-four million, seven hundred forty thousand, seventy".