1078021077 has 16 divisors (see below), whose sum is σ = 1682765952. Its totient is φ = 600986880.

The previous prime is 1078021073. The next prime is 1078021081. The reversal of 1078021077 is 7701208701.

It is an interprime number because it is at equal distance from previous prime (1078021073) and next prime (1078021081).

It is not a de Polignac number, because 1078021077 - 2² = 1078021073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078021073) 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, 625168 + ... + 626889.

It is an arithmetic number, because the mean of its divisors is an integer number (105172872).

Almost surely, 2^1078021077 is an apocalyptic number.

It is an amenable number.

1078021077 is a deficient number, since it is larger than the sum of its proper divisors (604744875).

1078021077 is a wasteful number, since it uses less digits than its factorization.

1078021077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252108.

The product of its (nonzero) digits is 5488, while the sum is 33.

The square root of 1078021077 is about 32833.2312908736. The cubic root of 1078021077 is about 1025.3585347361.

Adding to 1078021077 its reverse (7701208701), we get a palindrome (8779229778).

The spelling of 1078021077 in words is "one billion, seventy-eight million, twenty-one thousand, seventy-seven".