36621406 has 4 divisors (see below), whose sum is σ = 54932112. Its totient is φ = 18310702.

The previous prime is 36621397. The next prime is 36621407. The reversal of 36621406 is 60412663.

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

It is a super-2 number, since 2×36621406² = 2682254754833672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36621407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9155350 + ... + 9155353.

It is an arithmetic number, because the mean of its divisors is an integer number (13733028).

Almost surely, 2^36621406 is an apocalyptic number.

36621406 is a deficient number, since it is larger than the sum of its proper divisors (18310706).

36621406 is a wasteful number, since it uses less digits than its factorization.

36621406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18310705.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 36621406 is about 6051.5622776272. The cubic root of 36621406 is about 332.0817466966.

The spelling of 36621406 in words is "thirty-six million, six hundred twenty-one thousand, four hundred six".