7897954 has 8 divisors (see below), whose sum is σ = 12070620. Its totient is φ = 3874416.

The previous prime is 7897951. The next prime is 7897957. The reversal of 7897954 is 4597987.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7897951) and next prime (7897957).

It can be written as a sum of positive squares in 2 ways, for example, as 7868025 + 29929 = 2805^2 + 173^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7897954² = 124755354772232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7897898 and 7897907.

It is not an unprimeable number, because it can be changed into a prime (7897951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37149 + ... + 37360.

Almost surely, 2^7897954 is an apocalyptic number.

7897954 is a deficient number, since it is larger than the sum of its proper divisors (4172666).

7897954 is a wasteful number, since it uses less digits than its factorization.

7897954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74564.

The product of its digits is 635040, while the sum is 49.

The square root of 7897954 is about 2810.3298738760. The cubic root of 7897954 is about 199.1459750645.

The spelling of 7897954 in words is "seven million, eight hundred ninety-seven thousand, nine hundred fifty-four".