7912942 has 4 divisors (see below), whose sum is σ = 11869416. Its totient is φ = 3956470.

The previous prime is 7912937. The next prime is 7912951. The reversal of 7912942 is 2492197.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×7912942² = 125229302190728, which contains 22 as substring.

It is an Ulam number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 7912898 and 7912907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1978234 + ... + 1978237.

It is an arithmetic number, because the mean of its divisors is an integer number (2967354).

Almost surely, 2^7912942 is an apocalyptic number.

7912942 is a deficient number, since it is larger than the sum of its proper divisors (3956474).

7912942 is a wasteful number, since it uses less digits than its factorization.

7912942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956473.

The product of its digits is 9072, while the sum is 34.

The square root of 7912942 is about 2812.9952008491. The cubic root of 7912942 is about 199.2718690099.

The spelling of 7912942 in words is "seven million, nine hundred twelve thousand, nine hundred forty-two".