978770413 has 4 divisors (see below), whose sum is σ = 979070400. Its totient is φ = 978470428.

The previous prime is 978770407. The next prime is 978770417. The reversal of 978770413 is 314077879.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 314077879 = 15733 ⋅19963.

It is a cyclic number.

It is not a de Polignac number, because 978770413 - 2²⁹ = 441899501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978770417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145045 + ... + 151642.

It is an arithmetic number, because the mean of its divisors is an integer number (244767600).

Almost surely, 2^978770413 is an apocalyptic number.

It is an amenable number.

978770413 is a deficient number, since it is larger than the sum of its proper divisors (299987).

978770413 is a wasteful number, since it uses less digits than its factorization.

978770413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299986.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 978770413 is about 31285.3066630327. The cubic root of 978770413 is about 992.8727946239.

It can be divided in two parts, 9787 and 70413, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 978770413 in words is "nine hundred seventy-eight million, seven hundred seventy thousand, four hundred thirteen".