84397401 has 24 divisors (see below), whose sum is σ = 140815584. Its totient is φ = 48140160.

The previous prime is 84397399. The next prime is 84397409. The reversal of 84397401 is 10479348.

It is a happy number.

It is not a de Polignac number, because 84397401 - 2¹ = 84397399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84397409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23391 + ... + 26756.

It is an arithmetic number, because the mean of its divisors is an integer number (5867316).

Almost surely, 2^84397401 is an apocalyptic number.

It is an amenable number.

84397401 is a deficient number, since it is larger than the sum of its proper divisors (56418183).

84397401 is a wasteful number, since it uses less digits than its factorization.

84397401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50181 (or 50178 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 84397401 is about 9186.8058105089. The cubic root of 84397401 is about 438.6414726582.

It can be divided in two parts, 8 and 4397401, that added together give a square (4397409 = 2097²).

The spelling of 84397401 in words is "eighty-four million, three hundred ninety-seven thousand, four hundred one".