7881950 has 12 divisors (see below), whose sum is σ = 14660520. Its totient is φ = 3152760.

The previous prime is 7881919. The next prime is 7881959. The reversal of 7881950 is 591887.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7881959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78770 + ... + 78869.

It is an arithmetic number, because the mean of its divisors is an integer number (1221710).

Almost surely, 2^7881950 is an apocalyptic number.

7881950 is a deficient number, since it is larger than the sum of its proper divisors (6778570).

7881950 is a wasteful number, since it uses less digits than its factorization.

7881950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157651 (or 157646 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 7881950 is about 2807.4810774073. The cubic root of 7881950 is about 199.0113711169.

It can be divided in two parts, 78 and 81950, that multiplied together give a triangular number (6392100 = T₃₅₇₅).

The spelling of 7881950 in words is "seven million, eight hundred eighty-one thousand, nine hundred fifty".