2861972 has 24 divisors (see below), whose sum is σ = 5197920. Its totient is φ = 1378080.

The previous prime is 2861941. The next prime is 2861977. The reversal of 2861972 is 2791682.

It is a happy number.

2861972 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861977) 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, 15722 + ... + 15902.

It is an arithmetic number, because the mean of its divisors is an integer number (216580).

2^2861972 is an apocalyptic number.

It is an amenable number.

2861972 is a deficient number, since it is larger than the sum of its proper divisors (2335948).

2861972 is a wasteful number, since it uses less digits than its factorization.

2861972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 309 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 2861972 is about 1691.7363860838. The cubic root of 2861972 is about 141.9782417234.

The spelling of 2861972 in words is "two million, eight hundred sixty-one thousand, nine hundred seventy-two".