82209970 has 16 divisors (see below), whose sum is σ = 148091328. Its totient is φ = 32858800.

The previous prime is 82209947. The next prime is 82209971. The reversal of 82209970 is 7990228.

It is not an unprimeable number, because it can be changed into a prime (82209971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16245 + ... + 20695.

It is an arithmetic number, because the mean of its divisors is an integer number (9255708).

Almost surely, 2^82209970 is an apocalyptic number.

82209970 is a deficient number, since it is larger than the sum of its proper divisors (65881358).

82209970 is a wasteful number, since it uses less digits than its factorization.

82209970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 82209970 is about 9066.9713796835. The cubic root of 82209970 is about 434.8186499094.

The spelling of 82209970 in words is "eighty-two million, two hundred nine thousand, nine hundred seventy".