37221087 has 8 divisors (see below), whose sum is σ = 50256640. Its totient is φ = 24499800.

The previous prime is 37221077. The next prime is 37221091. The reversal of 37221087 is 78012273.

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

It is not a de Polignac number, because 37221087 - 2¹⁴ = 37204703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37221017) 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, 78289 + ... + 78762.

It is an arithmetic number, because the mean of its divisors is an integer number (6282080).

Almost surely, 2^37221087 is an apocalyptic number.

37221087 is a deficient number, since it is larger than the sum of its proper divisors (13035553).

37221087 is a wasteful number, since it uses less digits than its factorization.

37221087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157133.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 37221087 is about 6100.9087028081. The cubic root of 37221087 is about 333.8845711304.

The spelling of 37221087 in words is "thirty-seven million, two hundred twenty-one thousand, eighty-seven".