68977450 has 12 divisors (see below), whose sum is σ = 128298150. Its totient is φ = 27590960.

The previous prime is 68977427. The next prime is 68977451. The reversal of 68977450 is 5477986.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 52142841 + 16834609 = 7221^2 + 4103^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68977450.

It is not an unprimeable number, because it can be changed into a prime (68977451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 689725 + ... + 689824.

Almost surely, 2^68977450 is an apocalyptic number.

68977450 is a deficient number, since it is larger than the sum of its proper divisors (59320700).

68977450 is a wasteful number, since it uses less digits than its factorization.

68977450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379561 (or 1379556 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 68977450 is about 8305.2664015069. The cubic root of 68977450 is about 410.1119067919. Note that the first 3 decimals are identical.

The spelling of 68977450 in words is "sixty-eight million, nine hundred seventy-seven thousand, four hundred fifty".