7977245 has 16 divisors (see below), whose sum is σ = 10169280. Its totient is φ = 5990400.

The previous prime is 7977241. The next prime is 7977253. The reversal of 7977245 is 5427797.

It is not a de Polignac number, because 7977245 - 2² = 7977241 is a prime.

It is a d-powerful number, because it can be written as 7⁷ + 9⁶ + 7⁷ + 7⁸ + 2¹⁵ + 4⁵ + 5³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7977241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12125 + ... + 12765.

It is an arithmetic number, because the mean of its divisors is an integer number (635580).

Almost surely, 2^7977245 is an apocalyptic number.

It is an amenable number.

7977245 is a deficient number, since it is larger than the sum of its proper divisors (2192035).

7977245 is a wasteful number, since it uses less digits than its factorization.

7977245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its digits is 123480, while the sum is 41.

The square root of 7977245 is about 2824.4017065566. The cubic root of 7977245 is about 199.8101949272.

The spelling of 7977245 in words is "seven million, nine hundred seventy-seven thousand, two hundred forty-five".