940256987 has 8 divisors (see below), whose sum is σ = 975628416. Its totient is φ = 905409792.

The previous prime is 940256959. The next prime is 940257007. The reversal of 940256987 is 789652049.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 940256987 - 2⁶ = 940256923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (940256887) 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, 127403 + ... + 134580.

It is an arithmetic number, because the mean of its divisors is an integer number (121953552).

Almost surely, 2^940256987 is an apocalyptic number.

940256987 is a gapful number since it is divisible by the number (97) formed by its first and last digit.

940256987 is a deficient number, since it is larger than the sum of its proper divisors (35371429).

940256987 is a wasteful number, since it uses less digits than its factorization.

940256987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262117.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 940256987 is about 30663.6101429691. The cubic root of 940256987 is about 979.6753704027.

The spelling of 940256987 in words is "nine hundred forty million, two hundred fifty-six thousand, nine hundred eighty-seven".