977007945 has 16 divisors (see below), whose sum is σ = 1599567552. Its totient is φ = 508952640.

The previous prime is 977007943. The next prime is 977007947. The reversal of 977007945 is 549700779.

It is an interprime number because it is at equal distance from previous prime (977007943) and next prime (977007947).

It is not a de Polignac number, because 977007945 - 2¹ = 977007943 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 977007894 and 977007903.

It is not an unprimeable number, because it can be changed into a prime (977007943) 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, 756726 + ... + 758015.

It is an arithmetic number, because the mean of its divisors is an integer number (99972972).

Almost surely, 2^977007945 is an apocalyptic number.

It is an amenable number.

977007945 is a deficient number, since it is larger than the sum of its proper divisors (622559607).

977007945 is a wasteful number, since it uses less digits than its factorization.

977007945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514792.

The product of its (nonzero) digits is 555660, while the sum is 48.

The square root of 977007945 is about 31257.1263074519. The cubic root of 977007945 is about 992.2764825207.

The spelling of 977007945 in words is "nine hundred seventy-seven million, seven thousand, nine hundred forty-five".