84860401 has 4 divisors (see below), whose sum is σ = 85611492. Its totient is φ = 84109312.

The previous prime is 84860387. The next prime is 84860429. The reversal of 84860401 is 10406848.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10556001 + 74304400 = 3249^2 + 8620^2 .

It is a cyclic number.

It is not a de Polignac number, because 84860401 - 2⁷ = 84860273 is a prime.

It is a super-3 number, since 3×84860401³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84860431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375376 + ... + 375601.

It is an arithmetic number, because the mean of its divisors is an integer number (21402873).

Almost surely, 2^84860401 is an apocalyptic number.

It is an amenable number.

84860401 is a deficient number, since it is larger than the sum of its proper divisors (751091).

84860401 is a wasteful number, since it uses less digits than its factorization.

84860401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751090.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 84860401 is about 9211.9705275256. The cubic root of 84860401 is about 439.4421321760.

The spelling of 84860401 in words is "eighty-four million, eight hundred sixty thousand, four hundred one".