97439782 has 16 divisors (see below), whose sum is σ = 159667200. Its totient is φ = 44229640.

The previous prime is 97439773. The next prime is 97439803. The reversal of 97439782 is 28793479.

It is a super-2 number, since 2×97439782² = 18989022232415048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15819 + ... + 21097.

It is an arithmetic number, because the mean of its divisors is an integer number (9979200).

Almost surely, 2^97439782 is an apocalyptic number.

97439782 is a deficient number, since it is larger than the sum of its proper divisors (62227418).

97439782 is a wasteful number, since it uses less digits than its factorization.

97439782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6131.

The product of its digits is 762048, while the sum is 49.

The square root of 97439782 is about 9871.1591011390. The cubic root of 97439782 is about 460.1634296422.

It can be divided in two parts, 974397 and 82, that added together give a palindrome (974479).

The spelling of 97439782 in words is "ninety-seven million, four hundred thirty-nine thousand, seven hundred eighty-two".