97776468 has 36 divisors (see below), whose sum is σ = 249942420. Its totient is φ = 32224896.

The previous prime is 97776463. The next prime is 97776491. The reversal of 97776468 is 86467779.

It can be written as a sum of positive squares in 2 ways, for example, as 5846724 + 91929744 = 2418^2 + 9588^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97776463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12055 + ... + 18462.

It is an arithmetic number, because the mean of its divisors is an integer number (6942845).

Almost surely, 2^97776468 is an apocalyptic number.

It is an amenable number.

97776468 is an abundant number, since it is smaller than the sum of its proper divisors (152165952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97776468 is a wasteful number, since it uses less digits than its factorization.

97776468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30616 (or 30611 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 97776468 is about 9888.1984203393. The cubic root of 97776468 is about 460.6928249191.

The spelling of 97776468 in words is "ninety-seven million, seven hundred seventy-six thousand, four hundred sixty-eight".