2978547 has 32 divisors (see below), whose sum is σ = 4790016. Its totient is φ = 1622400.

The previous prime is 2978543. The next prime is 2978551. The reversal of 2978547 is 7458792.

It is an interprime number because it is at equal distance from previous prime (2978543) and next prime (2978551).

It is not a de Polignac number, because 2978547 - 2² = 2978543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2978499 and 2978508.

It is not an unprimeable number, because it can be changed into a prime (2978543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22672 + ... + 22802.

It is an arithmetic number, because the mean of its divisors is an integer number (149688).

2^2978547 is an apocalyptic number.

2978547 is a deficient number, since it is larger than the sum of its proper divisors (1811469).

2978547 is a wasteful number, since it uses less digits than its factorization.

2978547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211.

The product of its digits is 141120, while the sum is 42.

The square root of 2978547 is about 1725.8467487005. The cubic root of 2978547 is about 143.8803500700.

The spelling of 2978547 in words is "two million, nine hundred seventy-eight thousand, five hundred forty-seven".