97213669 has 8 divisors (see below), whose sum is σ = 113685440. Its totient is φ = 81387936.

The previous prime is 97213643. The next prime is 97213679. The reversal of 97213669 is 96631279.

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

It is not a de Polignac number, because 97213669 - 2⁵ = 97213637 is a prime.

It is a super-2 number, since 2×97213669² = 18900994880883122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97213639) 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, 161184 + ... + 161785.

It is an arithmetic number, because the mean of its divisors is an integer number (14210680).

Almost surely, 2^97213669 is an apocalyptic number.

97213669 is the 5693-rd hex number.

It is an amenable number.

97213669 is a deficient number, since it is larger than the sum of its proper divisors (16471771).

97213669 is a wasteful number, since it uses less digits than its factorization.

97213669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323019.

The product of its digits is 122472, while the sum is 43.

The square root of 97213669 is about 9859.6992347637. The cubic root of 97213669 is about 459.8072112729.

It can be divided in two parts, 972 and 13669, that added together give a palindrome (14641).

The spelling of 97213669 in words is "ninety-seven million, two hundred thirteen thousand, six hundred sixty-nine".