11537389 has 8 divisors (see below), whose sum is σ = 12564000. Its totient is φ = 10552752.

The previous prime is 11537387. The next prime is 11537399. The reversal of 11537389 is 98373511.

It is a happy number.

11537389 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11537389 - 2¹ = 11537387 is a prime.

It is a super-2 number, since 2×11537389² = 266222689874642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11537387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9919 + ... + 11020.

It is an arithmetic number, because the mean of its divisors is an integer number (1570500).

Almost surely, 2^11537389 is an apocalyptic number.

11537389 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11537389 is a deficient number, since it is larger than the sum of its proper divisors (1026611).

11537389 is a wasteful number, since it uses less digits than its factorization.

11537389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20987.

The product of its digits is 22680, while the sum is 37.

The square root of 11537389 is about 3396.6732253780. The cubic root of 11537389 is about 225.9622264381.

The spelling of 11537389 in words is "eleven million, five hundred thirty-seven thousand, three hundred eighty-nine".