97780148 has 12 divisors (see below), whose sum is σ = 171884160. Its totient is φ = 48670392.

The previous prime is 97780147. The next prime is 97780157. The reversal of 97780148 is 84108779.

It is a junction number, because it is equal to n+sod(n) for n = 97780099 and 97780108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97780147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53918 + ... + 55701.

It is an arithmetic number, because the mean of its divisors is an integer number (14323680).

Almost surely, 2^97780148 is an apocalyptic number.

It is an amenable number.

97780148 is a deficient number, since it is larger than the sum of its proper divisors (74104012).

97780148 is a wasteful number, since it uses less digits than its factorization.

97780148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109846 (or 109844 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 97780148 is about 9888.3844989968. The cubic root of 97780148 is about 460.6986045249.

The spelling of 97780148 in words is "ninety-seven million, seven hundred eighty thousand, one hundred forty-eight".