900730387 has 4 divisors (see below), whose sum is σ = 909148536. Its totient is φ = 892312240.

The previous prime is 900730373. The next prime is 900730399. The reversal of 900730387 is 783037009.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-900730387 is a prime.

It is a super-2 number, since 2×900730387² = 1622630460130339538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (900730307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4208914 + ... + 4209127.

It is an arithmetic number, because the mean of its divisors is an integer number (227287134).

Almost surely, 2^900730387 is an apocalyptic number.

900730387 is a deficient number, since it is larger than the sum of its proper divisors (8418149).

900730387 is a wasteful number, since it uses less digits than its factorization.

900730387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8418148.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 900730387 is about 30012.1706479222. The cubic root of 900730387 is about 965.7504920945.

The spelling of 900730387 in words is "nine hundred million, seven hundred thirty thousand, three hundred eighty-seven".