97689812 has 48 divisors (see below), whose sum is σ = 191927232. Its totient is φ = 43130880.

The previous prime is 97689799. The next prime is 97689817. The reversal of 97689812 is 21898679.

It is a super-3 number, since 3×97689812³ (a number of 25 digits) contains 333 as substring.

Its product of digits (435456) is a multiple of the sum of its prime divisors (486).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97689817) 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, 379988 + ... + 380244.

It is an arithmetic number, because the mean of its divisors is an integer number (3998484).

Almost surely, 2^97689812 is an apocalyptic number.

It is an amenable number.

97689812 is a deficient number, since it is larger than the sum of its proper divisors (94237420).

97689812 is a wasteful number, since it uses less digits than its factorization.

97689812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 486 counting only the distinct ones).

The product of its digits is 435456, while the sum is 50.

The square root of 97689812 is about 9883.8156599564. The cubic root of 97689812 is about 460.5566858329.

The spelling of 97689812 in words is "ninety-seven million, six hundred eighty-nine thousand, eight hundred twelve".