84775742 has 4 divisors (see below), whose sum is σ = 127163616. Its totient is φ = 42387870.

The previous prime is 84775727. The next prime is 84775751. The reversal of 84775742 is 24757748.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 84775693 and 84775702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21193934 + ... + 21193937.

It is an arithmetic number, because the mean of its divisors is an integer number (31790904).

Almost surely, 2^84775742 is an apocalyptic number.

84775742 is a deficient number, since it is larger than the sum of its proper divisors (42387874).

84775742 is a wasteful number, since it uses less digits than its factorization.

84775742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42387873.

The product of its digits is 439040, while the sum is 44.

The square root of 84775742 is about 9207.3743271358. The cubic root of 84775742 is about 439.2959504887.

The spelling of 84775742 in words is "eighty-four million, seven hundred seventy-five thousand, seven hundred forty-two".