13621097 has 16 divisors (see below), whose sum is σ = 17055360. Its totient is φ = 10606848.

The previous prime is 13621087. The next prime is 13621099. The reversal of 13621097 is 79012631.

It is not a de Polignac number, because 13621097 - 2¹⁰ = 13620073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (13621099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1478 + ... + 5424.

It is an arithmetic number, because the mean of its divisors is an integer number (1065960).

Almost surely, 2^13621097 is an apocalyptic number.

13621097 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13621097 is a deficient number, since it is larger than the sum of its proper divisors (3434263).

13621097 is a wasteful number, since it uses less digits than its factorization.

13621097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4000.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 13621097 is about 3690.6770381598. The cubic root of 13621097 is about 238.8200006723.

It can be divided in two parts, 136210 and 97, that multiplied together give a triangular number (13212370 = T₅₁₄₀).

The spelling of 13621097 in words is "thirteen million, six hundred twenty-one thousand, ninety-seven".