97781468 has 6 divisors (see below), whose sum is σ = 171117576. Its totient is φ = 48890732.

The previous prime is 97781461. The next prime is 97781473. The reversal of 97781468 is 86418779.

It is a super-2 number, since 2×97781468² = 19122430968470048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97781461) 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, 12222680 + ... + 12222687.

It is an arithmetic number, because the mean of its divisors is an integer number (28519596).

Almost surely, 2^97781468 is an apocalyptic number.

It is an amenable number.

97781468 is a deficient number, since it is larger than the sum of its proper divisors (73336108).

97781468 is a wasteful number, since it uses less digits than its factorization.

97781468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24445371 (or 24445369 counting only the distinct ones).

The product of its digits is 677376, while the sum is 50.

The square root of 97781468 is about 9888.4512437489. The cubic root of 97781468 is about 460.7006776091.

The spelling of 97781468 in words is "ninety-seven million, seven hundred eighty-one thousand, four hundred sixty-eight".