7971954 has 16 divisors (see below), whose sum is σ = 15992640. Its totient is φ = 2649200.

The previous prime is 7971919. The next prime is 7971959. The reversal of 7971954 is 4591797.

7971954 = T₄ + T₅ + ... + T₃₆₂.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7971959) 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, 304 + ... + 4004.

It is an arithmetic number, because the mean of its divisors is an integer number (999540).

Almost surely, 2^7971954 is an apocalyptic number.

7971954 is an abundant number, since it is smaller than the sum of its proper divisors (8020686).

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

7971954 is a wasteful number, since it uses less digits than its factorization.

7971954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4065.

The product of its digits is 79380, while the sum is 42.

The square root of 7971954 is about 2823.4648926452. The cubic root of 7971954 is about 199.7660096828.

The spelling of 7971954 in words is "seven million, nine hundred seventy-one thousand, nine hundred fifty-four".