97784061 has 8 divisors (see below), whose sum is σ = 130743360. Its totient is φ = 65007072.

The previous prime is 97784053. The next prime is 97784069. The reversal of 97784061 is 16048779.

It is an interprime number because it is at equal distance from previous prime (97784053) and next prime (97784069).

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

It is not a de Polignac number, because 97784061 - 2³ = 97784053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97784069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44320 + ... + 46473.

It is an arithmetic number, because the mean of its divisors is an integer number (16342920).

Almost surely, 2^97784061 is an apocalyptic number.

It is an amenable number.

97784061 is a deficient number, since it is larger than the sum of its proper divisors (32959299).

97784061 is a wasteful number, since it uses less digits than its factorization.

97784061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91155.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 97784061 is about 9888.5823554239. The cubic root of 97784061 is about 460.7047499087.

It can be divided in two parts, 977840 and 61, that added together give a triangular number (977901 = T₁₃₉₈).

The spelling of 97784061 in words is "ninety-seven million, seven hundred eighty-four thousand, sixty-one".