97778036 has 6 divisors (see below), whose sum is σ = 171111570. Its totient is φ = 48889016.

The previous prime is 97778029. The next prime is 97778039. The reversal of 97778036 is 63087779.

It can be written as a sum of positive squares in only one way, i.e., 94867600 + 2910436 = 9740^2 + 1706^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97778039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12222251 + ... + 12222258.

It is an arithmetic number, because the mean of its divisors is an integer number (28518595).

Almost surely, 2^97778036 is an apocalyptic number.

It is an amenable number.

97778036 is a deficient number, since it is larger than the sum of its proper divisors (73333534).

97778036 is a wasteful number, since it uses less digits than its factorization.

97778036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24444513 (or 24444511 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 97778036 is about 9888.2777064563. The cubic root of 97778036 is about 460.6952875515.

The spelling of 97778036 in words is "ninety-seven million, seven hundred seventy-eight thousand, thirty-six".