97199421 has 48 divisors (see below), whose sum is σ = 158961600. Its totient is φ = 52462080.

The previous prime is 97199419. The next prime is 97199423. The reversal of 97199421 is 12499179.

It is an interprime number because it is at equal distance from previous prime (97199419) and next prime (97199423).

It is not a de Polignac number, because 97199421 - 2¹ = 97199419 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97199423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116835 + ... + 117663.

It is an arithmetic number, because the mean of its divisors is an integer number (3311700).

Almost surely, 2^97199421 is an apocalyptic number.

It is an amenable number.

97199421 is a deficient number, since it is larger than the sum of its proper divisors (61762179).

97199421 is a wasteful number, since it uses less digits than its factorization.

97199421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 879 counting only the distinct ones).

The product of its digits is 40824, while the sum is 42.

The square root of 97199421 is about 9858.9766710344. The cubic root of 97199421 is about 459.7847464854.

The spelling of 97199421 in words is "ninety-seven million, one hundred ninety-nine thousand, four hundred twenty-one".