89742070 has 24 divisors (see below), whose sum is σ = 177558192. Its totient is φ = 32633040.

The previous prime is 89742049. The next prime is 89742097. The reversal of 89742070 is 7024798.

It is a happy number.

It is a super-4 number, since 4×89742070⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35874 + ... + 38293.

It is an arithmetic number, because the mean of its divisors is an integer number (7398258).

Almost surely, 2^89742070 is an apocalyptic number.

89742070 is a deficient number, since it is larger than the sum of its proper divisors (87816122).

89742070 is a wasteful number, since it uses less digits than its factorization.

89742070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74196 (or 74185 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 89742070 is about 9473.2291221104. The cubic root of 89742070 is about 447.7119580987.

The spelling of 89742070 in words is "eighty-nine million, seven hundred forty-two thousand, seventy".