97781234 has 8 divisors (see below), whose sum is σ = 153048960. Its totient is φ = 46764916.

The previous prime is 97781213. The next prime is 97781249. The reversal of 97781234 is 43218779.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×97781234² = 19122339445125512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97781191 and 97781200.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1062794 + ... + 1062885.

It is an arithmetic number, because the mean of its divisors is an integer number (19131120).

Almost surely, 2^97781234 is an apocalyptic number.

97781234 is a deficient number, since it is larger than the sum of its proper divisors (55267726).

97781234 is a wasteful number, since it uses less digits than its factorization.

97781234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125704.

The product of its digits is 84672, while the sum is 41.

The square root of 97781234 is about 9888.4394117575. The cubic root of 97781234 is about 460.7003101091.

The spelling of 97781234 in words is "ninety-seven million, seven hundred eighty-one thousand, two hundred thirty-four".