2978501 has 2 divisors, whose sum is σ = 2978502. Its totient is φ = 2978500.

The previous prime is 2978491. The next prime is 2978533. The reversal of 2978501 is 1058792.

It is an a-pointer prime, because the next prime (2978533) can be obtained adding 2978501 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1600225 + 1378276 = 1265^2 + 1174^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2978501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2978551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1489250 + 1489251.

It is an arithmetic number, because the mean of its divisors is an integer number (1489251).

2^2978501 is an apocalyptic number.

It is an amenable number.

2978501 is a deficient number, since it is larger than the sum of its proper divisors (1).

2978501 is an equidigital number, since it uses as much as digits as its factorization.

2978501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 2978501 is about 1725.8334218574. The cubic root of 2978501 is about 143.8796093811.

The spelling of 2978501 in words is "two million, nine hundred seventy-eight thousand, five hundred one".