97771672 has 8 divisors (see below), whose sum is σ = 183321900. Its totient is φ = 48885832.

The previous prime is 97771633. The next prime is 97771679. The reversal of 97771672 is 27617779.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97771679) 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 as a sum of consecutive naturals, namely, 6110722 + ... + 6110737.

Almost surely, 2^97771672 is an apocalyptic number.

It is an amenable number.

97771672 is a deficient number, since it is larger than the sum of its proper divisors (85550228).

97771672 is a wasteful number, since it uses less digits than its factorization.

97771672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12221465 (or 12221461 counting only the distinct ones).

The product of its digits is 259308, while the sum is 46.

The square root of 97771672 is about 9887.9559060506. The cubic root of 97771672 is about 460.6852923674.

It can be divided in two parts, 9777 and 1672, that added together give a square (11449 = 107²).

The spelling of 97771672 in words is "ninety-seven million, seven hundred seventy-one thousand, six hundred seventy-two".