34357978 has 16 divisors (see below), whose sum is σ = 53465544. Its totient is φ = 16545600.

The previous prime is 34357949. The next prime is 34357979. The reversal of 34357978 is 87975343.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 33790969 + 567009 = 5813^2 + 753^2 .

It is not an unprimeable number, because it can be changed into a prime (34357979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5176 + ... + 9772.

Almost surely, 2^34357978 is an apocalyptic number.

34357978 is a deficient number, since it is larger than the sum of its proper divisors (19107566).

34357978 is a wasteful number, since it uses less digits than its factorization.

34357978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737.

The product of its digits is 635040, while the sum is 46.

The square root of 34357978 is about 5861.5678789894. The cubic root of 34357978 is about 325.0941833544.

The spelling of 34357978 in words is "thirty-four million, three hundred fifty-seven thousand, nine hundred seventy-eight".