8651940 has 48 divisors (see below), whose sum is σ = 26429760. Its totient is φ = 2097280.

The previous prime is 8651939. The next prime is 8651941. The reversal of 8651940 is 491568.

It is an interprime number because it is at equal distance from previous prime (8651939) and next prime (8651941).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (8651941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5895 + ... + 7214.

It is an arithmetic number, because the mean of its divisors is an integer number (550620).

Almost surely, 2^8651940 is an apocalyptic number.

It is an amenable number.

8651940 is an abundant number, since it is smaller than the sum of its proper divisors (17777820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8651940 is a wasteful number, since it uses less digits than its factorization.

8651940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13132 (or 13130 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 8651940 is about 2941.4180253748. The cubic root of 8651940 is about 205.2915937628.

It can be divided in two parts, 8651 and 940, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 8651940 in words is "eight million, six hundred fifty-one thousand, nine hundred forty".