7172401 has 4 divisors (see below), whose sum is σ = 7202404. Its totient is φ = 7142400.

The previous prime is 7172387. The next prime is 7172411. The reversal of 7172401 is 1042717.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1042717 = 13 ⋅80209.

It can be written as a sum of positive squares in 2 ways, for example, as 3168400 + 4004001 = 1780^2 + 2001^2 .

It is a cyclic number.

It is not a de Polignac number, because 7172401 - 2⁵ = 7172369 is a prime.

It is a super-2 number, since 2×7172401² = 102886672209602, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7172411) 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, 14640 + ... + 15121.

It is an arithmetic number, because the mean of its divisors is an integer number (1800601).

Almost surely, 2^7172401 is an apocalyptic number.

It is an amenable number.

7172401 is a deficient number, since it is larger than the sum of its proper divisors (30003).

7172401 is a wasteful number, since it uses less digits than its factorization.

7172401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30002.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 7172401 is about 2678.1338652129. The cubic root of 7172401 is about 192.8508337606.

The spelling of 7172401 in words is "seven million, one hundred seventy-two thousand, four hundred one".