36611421 has 32 divisors (see below), whose sum is σ = 64447488. Its totient is φ = 17898240.

The previous prime is 36611411. The next prime is 36611429. The reversal of 36611421 is 12411663.

It is not a de Polignac number, because 36611421 - 2⁶ = 36611357 is a prime.

It is a super-2 number, since 2×36611421² = 2680792295278482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 36611391 and 36611400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36611429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 735 + ... + 8588.

It is an arithmetic number, because the mean of its divisors is an integer number (2013984).

Almost surely, 2^36611421 is an apocalyptic number.

It is an amenable number.

36611421 is a deficient number, since it is larger than the sum of its proper divisors (27836067).

36611421 is a wasteful number, since it uses less digits than its factorization.

36611421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9361.

The product of its digits is 864, while the sum is 24.

The square root of 36611421 is about 6050.7372278095. The cubic root of 36611421 is about 332.0515627322.

The spelling of 36611421 in words is "thirty-six million, six hundred eleven thousand, four hundred twenty-one".