97012784 has 80 divisors (see below), whose sum is σ = 219569280. Its totient is φ = 41057280.

The previous prime is 97012739. The next prime is 97012787. The reversal of 97012784 is 48721079.

It is a super-2 number, since 2×97012784² = 18822960518861312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (97012787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223832 + ... + 224264.

It is an arithmetic number, because the mean of its divisors is an integer number (2744616).

Almost surely, 2^97012784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97012784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109784640).

97012784 is an abundant number, since it is smaller than the sum of its proper divisors (122556496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97012784 is a wasteful number, since it uses less digits than its factorization.

97012784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 97012784 is about 9849.5067896824. The cubic root of 97012784 is about 459.4902734392.

The spelling of 97012784 in words is "ninety-seven million, twelve thousand, seven hundred eighty-four".